Finding the Fourth Proportional to 196,485.57, 271,150.10 and 107,061.57

Step by Step Solution

1. Step 1: Write the proportion equation
   196,485.57 : 271,150.10 = 107,061.57 : x
2. Step 2: Convert to fraction form
   196,485.57/271,150.10 = 107,061.57/x
3. Step 3: Cross multiply
   196,485.57x = 271,150.10 × 107,061.57
4. Step 4: Simplify right side
   196,485.57x = 29,029,755,411.66
5. Step 5: Solve for x
   x = 29,029,755,411.66/196,485.57
6. Step 6: Final answer
   x = 147,744.97