Finding the Fourth Proportional to 156,322.85, 215,724.62 and 88,361.83

Step by Step Solution

1. Step 1: Write the proportion equation
   156,322.85 : 215,724.62 = 88,361.83 : x
2. Step 2: Convert to fraction form
   156,322.85/215,724.62 = 88,361.83/x
3. Step 3: Cross multiply
   156,322.85x = 215,724.62 × 88,361.83
4. Step 4: Simplify right side
   156,322.85x = 19,061,820,678.82
5. Step 5: Solve for x
   x = 19,061,820,678.82/156,322.85
6. Step 6: Final answer
   x = 121,938.80