Finding the Fourth Proportional to 88,978.57, 122,787.43 and 48,689.63

Step by Step Solution

1. Step 1: Write the proportion equation
   88,978.57 : 122,787.43 = 48,689.63 : x
2. Step 2: Convert to fraction form
   88,978.57/122,787.43 = 48,689.63/x
3. Step 3: Cross multiply
   88,978.57x = 122,787.43 × 48,689.63
4. Step 4: Simplify right side
   88,978.57x = 5,978,474,535.35
5. Step 5: Solve for x
   x = 5,978,474,535.35/88,978.57
6. Step 6: Final answer
   x = 67,190.05