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Finding the Fourth Proportional to 12,599.78, 18,900.72 and 3,834.77

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Solution

The fourth proportional to 12,599.78, 18,900.72 and 3,834.77 is: 5,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.78 : 18,900.72 = 3,834.77 : x
  2. Step 2: Convert to fraction form
    12,599.78/18,900.72 = 3,834.77/x
  3. Step 3: Cross multiply
    12,599.78x = 18,900.72 × 3,834.77
  4. Step 4: Simplify right side
    12,599.78x = 72,479,819.53
  5. Step 5: Solve for x
    x = 72,479,819.53/12,599.78
  6. Step 6: Final answer
    x = 5,752.47

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