Finding the Fourth Proportional to 88,391.57, 121,980.69 and 48,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   88,391.57 : 121,980.69 = 48,105.82 : x
2. Step 2: Convert to fraction form
   88,391.57/121,980.69 = 48,105.82/x
3. Step 3: Cross multiply
   88,391.57x = 121,980.69 × 48,105.82
4. Step 4: Simplify right side
   88,391.57x = 5,867,980,266.18
5. Step 5: Solve for x
   x = 5,867,980,266.18/88,391.57
6. Step 6: Final answer
   x = 66,386.20