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Finding the Fourth Proportional to 13,461.12, 18,574.80 and 7,795.98

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Solution

The fourth proportional to 13,461.12, 18,574.80 and 7,795.98 is: 10,757.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.12 : 18,574.80 = 7,795.98 : x
  2. Step 2: Convert to fraction form
    13,461.12/18,574.80 = 7,795.98/x
  3. Step 3: Cross multiply
    13,461.12x = 18,574.80 × 7,795.98
  4. Step 4: Simplify right side
    13,461.12x = 144,808,769.30
  5. Step 5: Solve for x
    x = 144,808,769.30/13,461.12
  6. Step 6: Final answer
    x = 10,757.56

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