Finding the Fourth Proportional to 155,862.96, 215,105.40 and 88,782

Step by Step Solution

1. Step 1: Write the proportion equation
   155,862.96 : 215,105.40 = 88,782 : x
2. Step 2: Convert to fraction form
   155,862.96/215,105.40 = 88,782/x
3. Step 3: Cross multiply
   155,862.96x = 215,105.40 × 88,782
4. Step 4: Simplify right side
   155,862.96x = 19,097,487,622.80
5. Step 5: Solve for x
   x = 19,097,487,622.80/155,862.96
6. Step 6: Final answer
   x = 122,527.43