Finding the Fourth Proportional to 91,171.08, 125,868.72 and 69,490.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,171.08 : 125,868.72 = 69,490.56 : x
2. Step 2: Convert to fraction form
   91,171.08/125,868.72 = 69,490.56/x
3. Step 3: Cross multiply
   91,171.08x = 125,868.72 × 69,490.56
4. Step 4: Simplify right side
   91,171.08x = 8,746,687,839.28
5. Step 5: Solve for x
   x = 8,746,687,839.28/91,171.08
6. Step 6: Final answer
   x = 95,937.09