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Finding the Fourth Proportional to 38,781.99, 58,178.39 and 13,814.69

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Solution

The fourth proportional to 38,781.99, 58,178.39 and 13,814.69 is: 20,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781.99 : 58,178.39 = 13,814.69 : x
  2. Step 2: Convert to fraction form
    38,781.99/58,178.39 = 13,814.69/x
  3. Step 3: Cross multiply
    38,781.99x = 58,178.39 × 13,814.69
  4. Step 4: Simplify right side
    38,781.99x = 803,716,062.58
  5. Step 5: Solve for x
    x = 803,716,062.58/38,781.99
  6. Step 6: Final answer
    x = 20,723.95

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