Finding the Fourth Proportional to 123,991.28, 171,108.96 and 67,402.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,991.28 : 171,108.96 = 67,402.52 : x
2. Step 2: Convert to fraction form
   123,991.28/171,108.96 = 67,402.52/x
3. Step 3: Cross multiply
   123,991.28x = 171,108.96 × 67,402.52
4. Step 4: Simplify right side
   123,991.28x = 11,533,175,098.58
5. Step 5: Solve for x
   x = 11,533,175,098.58/123,991.28
6. Step 6: Final answer
   x = 93,016.02