Finding the Fourth Proportional to 91,141.92, 125,760.78 and 60,878.70

Step by Step Solution

1. Step 1: Write the proportion equation
   91,141.92 : 125,760.78 = 60,878.70 : x
2. Step 2: Convert to fraction form
   91,141.92/125,760.78 = 60,878.70/x
3. Step 3: Cross multiply
   91,141.92x = 125,760.78 × 60,878.70
4. Step 4: Simplify right side
   91,141.92x = 7,656,152,797.39
5. Step 5: Solve for x
   x = 7,656,152,797.39/91,141.92
6. Step 6: Final answer
   x = 84,002.54