Finding the Fourth Proportional to 108,868.61, 150,234.83 and 61,123.97

Step by Step Solution

1. Step 1: Write the proportion equation
   108,868.61 : 150,234.83 = 61,123.97 : x
2. Step 2: Convert to fraction form
   108,868.61/150,234.83 = 61,123.97/x
3. Step 3: Cross multiply
   108,868.61x = 150,234.83 × 61,123.97
4. Step 4: Simplify right side
   108,868.61x = 9,182,949,617.46
5. Step 5: Solve for x
   x = 9,182,949,617.46/108,868.61
6. Step 6: Final answer
   x = 84,348.92