Finding the Fourth Proportional to 156,401.92, 215,832 and 88,417.84

Step by Step Solution

1. Step 1: Write the proportion equation
   156,401.92 : 215,832 = 88,417.84 : x
2. Step 2: Convert to fraction form
   156,401.92/215,832 = 88,417.84/x
3. Step 3: Cross multiply
   156,401.92x = 215,832 × 88,417.84
4. Step 4: Simplify right side
   156,401.92x = 19,083,399,242.88
5. Step 5: Solve for x
   x = 19,083,399,242.88/156,401.92
6. Step 6: Final answer
   x = 122,015.12