Finding the Fourth Proportional to 155,179.50, 214,147.74 and 88,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,179.50 : 214,147.74 = 88,111.50 : x
2. Step 2: Convert to fraction form
   155,179.50/214,147.74 = 88,111.50/x
3. Step 3: Cross multiply
   155,179.50x = 214,147.74 × 88,111.50
4. Step 4: Simplify right side
   155,179.50x = 18,868,878,593.01
5. Step 5: Solve for x
   x = 18,868,878,593.01/155,179.50
6. Step 6: Final answer
   x = 121,593.89