Finding the Fourth Proportional to 91,363.20, 125,596.56 and 78,569.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91,363.20 : 125,596.56 = 78,569.52 : x
2. Step 2: Convert to fraction form
   91,363.20/125,596.56 = 78,569.52/x
3. Step 3: Cross multiply
   91,363.20x = 125,596.56 × 78,569.52
4. Step 4: Simplify right side
   91,363.20x = 9,868,061,432.85
5. Step 5: Solve for x
   x = 9,868,061,432.85/91,363.20
6. Step 6: Final answer
   x = 108,009.15