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Finding the Fourth Proportional to 17,275.92, 25,939.80 and 9,888.72

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Solution

The fourth proportional to 17,275.92, 25,939.80 and 9,888.72 is: 14,847.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,275.92 : 25,939.80 = 9,888.72 : x
  2. Step 2: Convert to fraction form
    17,275.92/25,939.80 = 9,888.72/x
  3. Step 3: Cross multiply
    17,275.92x = 25,939.80 × 9,888.72
  4. Step 4: Simplify right side
    17,275.92x = 256,511,419.06
  5. Step 5: Solve for x
    x = 256,511,419.06/17,275.92
  6. Step 6: Final answer
    x = 14,847.92

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