Finding the Fourth Proportional to 156,041.82, 215,337.60 and 88,073.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,041.82 : 215,337.60 = 88,073.10 : x
2. Step 2: Convert to fraction form
   156,041.82/215,337.60 = 88,073.10/x
3. Step 3: Cross multiply
   156,041.82x = 215,337.60 × 88,073.10
4. Step 4: Simplify right side
   156,041.82x = 18,965,449,978.56
5. Step 5: Solve for x
   x = 18,965,449,978.56/156,041.82
6. Step 6: Final answer
   x = 121,540.82