Finding the Fourth Proportional to 83,922.72, 115,809.90 and 48,087.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,922.72 : 115,809.90 = 48,087.78 : x
2. Step 2: Convert to fraction form
   83,922.72/115,809.90 = 48,087.78/x
3. Step 3: Cross multiply
   83,922.72x = 115,809.90 × 48,087.78
4. Step 4: Simplify right side
   83,922.72x = 5,569,040,993.02
5. Step 5: Solve for x
   x = 5,569,040,993.02/83,922.72
6. Step 6: Final answer
   x = 66,359.16