Finding the Fourth Proportional to 88,399.80, 121,994.34 and 48,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   88,399.80 : 121,994.34 = 48,116.18 : x
2. Step 2: Convert to fraction form
   88,399.80/121,994.34 = 48,116.18/x
3. Step 3: Cross multiply
   88,399.80x = 121,994.34 × 48,116.18
4. Step 4: Simplify right side
   88,399.80x = 5,869,901,012.45
5. Step 5: Solve for x
   x = 5,869,901,012.45/88,399.80
6. Step 6: Final answer
   x = 66,401.75