Finding the Fourth Proportional to 156,042.82, 215,338.98 and 88,074.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,042.82 : 215,338.98 = 88,074.10 : x
2. Step 2: Convert to fraction form
   156,042.82/215,338.98 = 88,074.10/x
3. Step 3: Cross multiply
   156,042.82x = 215,338.98 × 88,074.10
4. Step 4: Simplify right side
   156,042.82x = 18,965,786,858.42
5. Step 5: Solve for x
   x = 18,965,786,858.42/156,042.82
6. Step 6: Final answer
   x = 121,542.20