Finding the Fourth Proportional to 88,105.40, 121,583.69 and 49,864.25

Step by Step Solution

1. Step 1: Write the proportion equation
   88,105.40 : 121,583.69 = 49,864.25 : x
2. Step 2: Convert to fraction form
   88,105.40/121,583.69 = 49,864.25/x
3. Step 3: Cross multiply
   88,105.40x = 121,583.69 × 49,864.25
4. Step 4: Simplify right side
   88,105.40x = 6,062,679,568.72
5. Step 5: Solve for x
   x = 6,062,679,568.72/88,105.40
6. Step 6: Final answer
   x = 68,811.67