Finding the Fourth Proportional to 107,937.89, 148,995.32 and 81,158.16

Step by Step Solution

1. Step 1: Write the proportion equation
   107,937.89 : 148,995.32 = 81,158.16 : x
2. Step 2: Convert to fraction form
   107,937.89/148,995.32 = 81,158.16/x
3. Step 3: Cross multiply
   107,937.89x = 148,995.32 × 81,158.16
4. Step 4: Simplify right side
   107,937.89x = 12,092,185,614.02
5. Step 5: Solve for x
   x = 12,092,185,614.02/107,937.89
6. Step 6: Final answer
   x = 112,029.11