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Finding the Fourth Proportional to 28,502.63, 42,763.17 and 13,709.62

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Solution

The fourth proportional to 28,502.63, 42,763.17 and 13,709.62 is: 20,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.63 : 42,763.17 = 13,709.62 : x
  2. Step 2: Convert to fraction form
    28,502.63/42,763.17 = 13,709.62/x
  3. Step 3: Cross multiply
    28,502.63x = 42,763.17 × 13,709.62
  4. Step 4: Simplify right side
    28,502.63x = 586,266,810.70
  5. Step 5: Solve for x
    x = 586,266,810.70/28,502.63
  6. Step 6: Final answer
    x = 20,568.87

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