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Finding the Fourth Proportional to 10,458.99, 15,687.09 and 3,884.28

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Solution

The fourth proportional to 10,458.99, 15,687.09 and 3,884.28 is: 5,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.99 : 15,687.09 = 3,884.28 : x
  2. Step 2: Convert to fraction form
    10,458.99/15,687.09 = 3,884.28/x
  3. Step 3: Cross multiply
    10,458.99x = 15,687.09 × 3,884.28
  4. Step 4: Simplify right side
    10,458.99x = 60,933,049.95
  5. Step 5: Solve for x
    x = 60,933,049.95/10,458.99
  6. Step 6: Final answer
    x = 5,825.90

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