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Finding the Fourth Proportional to 126,429.30, 174,471.88 and 69,840.67

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Solution

The fourth proportional to 126,429.30, 174,471.88 and 69,840.67 is: 96,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,429.30 : 174,471.88 = 69,840.67 : x
  2. Step 2: Convert to fraction form
    126,429.30/174,471.88 = 69,840.67/x
  3. Step 3: Cross multiply
    126,429.30x = 174,471.88 × 69,840.67
  4. Step 4: Simplify right side
    126,429.30x = 12,185,232,995.36
  5. Step 5: Solve for x
    x = 12,185,232,995.36/126,429.30
  6. Step 6: Final answer
    x = 96,379.82

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