Finding the Fourth Proportional to 155,862.78, 215,095.59 and 88,799.10

Step by Step Solution

1. Step 1: Write the proportion equation
   155,862.78 : 215,095.59 = 88,799.10 : x
2. Step 2: Convert to fraction form
   155,862.78/215,095.59 = 88,799.10/x
3. Step 3: Cross multiply
   155,862.78x = 215,095.59 × 88,799.10
4. Step 4: Simplify right side
   155,862.78x = 19,100,294,805.97
5. Step 5: Solve for x
   x = 19,100,294,805.97/155,862.78
6. Step 6: Final answer
   x = 122,545.58