Finding the Fourth Proportional to 88,196.60, 121,706.70 and 47,910.30

Step by Step Solution

1. Step 1: Write the proportion equation
   88,196.60 : 121,706.70 = 47,910.30 : x
2. Step 2: Convert to fraction form
   88,196.60/121,706.70 = 47,910.30/x
3. Step 3: Cross multiply
   88,196.60x = 121,706.70 × 47,910.30
4. Step 4: Simplify right side
   88,196.60x = 5,831,004,509.01
5. Step 5: Solve for x
   x = 5,831,004,509.01/88,196.60
6. Step 6: Final answer
   x = 66,113.71