Finding the Fourth Proportional to 156,411.42, 215,845.11 and 88,427.34

Step by Step Solution

1. Step 1: Write the proportion equation
   156,411.42 : 215,845.11 = 88,427.34 : x
2. Step 2: Convert to fraction form
   156,411.42/215,845.11 = 88,427.34/x
3. Step 3: Cross multiply
   156,411.42x = 215,845.11 × 88,427.34
4. Step 4: Simplify right side
   156,411.42x = 19,086,608,929.31
5. Step 5: Solve for x
   x = 19,086,608,929.31/156,411.42
6. Step 6: Final answer
   x = 122,028.23