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Finding the Fourth Proportional to 51,808.59, 77,693.85 and 18,519.63

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Solution

The fourth proportional to 51,808.59, 77,693.85 and 18,519.63 is: 27,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,808.59 : 77,693.85 = 18,519.63 : x
  2. Step 2: Convert to fraction form
    51,808.59/77,693.85 = 18,519.63/x
  3. Step 3: Cross multiply
    51,808.59x = 77,693.85 × 18,519.63
  4. Step 4: Simplify right side
    51,808.59x = 1,438,861,355.28
  5. Step 5: Solve for x
    x = 1,438,861,355.28/51,808.59
  6. Step 6: Final answer
    x = 27,772.64

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