Finding the Fourth Proportional to 108,868.57, 150,234.78 and 61,123.93

Step by Step Solution

1. Step 1: Write the proportion equation
   108,868.57 : 150,234.78 = 61,123.93 : x
2. Step 2: Convert to fraction form
   108,868.57/150,234.78 = 61,123.93/x
3. Step 3: Cross multiply
   108,868.57x = 150,234.78 × 61,123.93
4. Step 4: Simplify right side
   108,868.57x = 9,182,940,359.25
5. Step 5: Solve for x
   x = 9,182,940,359.25/108,868.57
6. Step 6: Final answer
   x = 84,348.86