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Finding the Fourth Proportional to 12,608,548.80, 18,912,823.20 and 7,506,715.20

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Solution

The fourth proportional to 12,608,548.80, 18,912,823.20 and 7,506,715.20 is: 11,260,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608,548.80 : 18,912,823.20 = 7,506,715.20 : x
  2. Step 2: Convert to fraction form
    12,608,548.80/18,912,823.20 = 7,506,715.20/x
  3. Step 3: Cross multiply
    12,608,548.80x = 18,912,823.20 × 7,506,715.20
  4. Step 4: Simplify right side
    12,608,548.80x = 141,973,177,390,352.62
  5. Step 5: Solve for x
    x = 141,973,177,390,352.62/12,608,548.80
  6. Step 6: Final answer
    x = 11,260,072.80

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