Finding the Fourth Proportional to 88,978.12, 122,789.82 and 48,691.89

Step by Step Solution

1. Step 1: Write the proportion equation
   88,978.12 : 122,789.82 = 48,691.89 : x
2. Step 2: Convert to fraction form
   88,978.12/122,789.82 = 48,691.89/x
3. Step 3: Cross multiply
   88,978.12x = 122,789.82 × 48,691.89
4. Step 4: Simplify right side
   88,978.12x = 5,978,868,408.56
5. Step 5: Solve for x
   x = 5,978,868,408.56/88,978.12
6. Step 6: Final answer
   x = 67,194.82