Finding the Fourth Proportional to 89,755.83, 123,861.42 and 48,920.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,755.83 : 123,861.42 = 48,920.31 : x
2. Step 2: Convert to fraction form
   89,755.83/123,861.42 = 48,920.31/x
3. Step 3: Cross multiply
   89,755.83x = 123,861.42 × 48,920.31
4. Step 4: Simplify right side
   89,755.83x = 6,059,339,063.44
5. Step 5: Solve for x
   x = 6,059,339,063.44/89,755.83
6. Step 6: Final answer
   x = 67,509.14