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Finding the Fourth Proportional to 72,158.37, 108,239.45 and 34,198.74

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Solution

The fourth proportional to 72,158.37, 108,239.45 and 34,198.74 is: 51,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,158.37 : 108,239.45 = 34,198.74 : x
  2. Step 2: Convert to fraction form
    72,158.37/108,239.45 = 34,198.74/x
  3. Step 3: Cross multiply
    72,158.37x = 108,239.45 × 34,198.74
  4. Step 4: Simplify right side
    72,158.37x = 3,701,652,637.30
  5. Step 5: Solve for x
    x = 3,701,652,637.30/72,158.37
  6. Step 6: Final answer
    x = 51,299.01

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