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Finding the Fourth Proportional to 17,922.80, 26,884.20 and 12,047.60

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Solution

The fourth proportional to 17,922.80, 26,884.20 and 12,047.60 is: 18,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,922.80 : 26,884.20 = 12,047.60 : x
  2. Step 2: Convert to fraction form
    17,922.80/26,884.20 = 12,047.60/x
  3. Step 3: Cross multiply
    17,922.80x = 26,884.20 × 12,047.60
  4. Step 4: Simplify right side
    17,922.80x = 323,890,087.92
  5. Step 5: Solve for x
    x = 323,890,087.92/17,922.80
  6. Step 6: Final answer
    x = 18,071.40

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