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Finding the Fourth Proportional to 17,739.48, 24,480.12 and 9,781.92

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Solution

The fourth proportional to 17,739.48, 24,480.12 and 9,781.92 is: 13,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.48 : 24,480.12 = 9,781.92 : x
  2. Step 2: Convert to fraction form
    17,739.48/24,480.12 = 9,781.92/x
  3. Step 3: Cross multiply
    17,739.48x = 24,480.12 × 9,781.92
  4. Step 4: Simplify right side
    17,739.48x = 239,462,575.43
  5. Step 5: Solve for x
    x = 239,462,575.43/17,739.48
  6. Step 6: Final answer
    x = 13,498.85

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