Finding the Fourth Proportional to 156,661.50, 215,361.57 and 134,777.83

Step by Step Solution

1. Step 1: Write the proportion equation
   156,661.50 : 215,361.57 = 134,777.83 : x
2. Step 2: Convert to fraction form
   156,661.50/215,361.57 = 134,777.83/x
3. Step 3: Cross multiply
   156,661.50x = 215,361.57 × 134,777.83
4. Step 4: Simplify right side
   156,661.50x = 29,025,964,194.64
5. Step 5: Solve for x
   x = 29,025,964,194.64/156,661.50
6. Step 6: Final answer
   x = 185,278.23