Finding the Fourth Proportional to 88,196.57, 121,711.36 and 47,910.33

Step by Step Solution

1. Step 1: Write the proportion equation
   88,196.57 : 121,711.36 = 47,910.33 : x
2. Step 2: Convert to fraction form
   88,196.57/121,711.36 = 47,910.33/x
3. Step 3: Cross multiply
   88,196.57x = 121,711.36 × 47,910.33
4. Step 4: Simplify right side
   88,196.57x = 5,831,231,330.10
5. Step 5: Solve for x
   x = 5,831,231,330.10/88,196.57
6. Step 6: Final answer
   x = 66,116.31