Finding the Fourth Proportional to 156,496.50, 215,976.33 and 88,514.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,496.50 : 215,976.33 = 88,514.10 : x
2. Step 2: Convert to fraction form
   156,496.50/215,976.33 = 88,514.10/x
3. Step 3: Cross multiply
   156,496.50x = 215,976.33 × 88,514.10
4. Step 4: Simplify right side
   156,496.50x = 19,116,950,471.25
5. Step 5: Solve for x
   x = 19,116,950,471.25/156,496.50
6. Step 6: Final answer
   x = 122,155.77