Finding the Fourth Proportional to 89,385.12, 123,345.36 and 49,100.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,385.12 : 123,345.36 = 49,100.58 : x
2. Step 2: Convert to fraction form
   89,385.12/123,345.36 = 49,100.58/x
3. Step 3: Cross multiply
   89,385.12x = 123,345.36 × 49,100.58
4. Step 4: Simplify right side
   89,385.12x = 6,056,328,716.31
5. Step 5: Solve for x
   x = 6,056,328,716.31/89,385.12
6. Step 6: Final answer
   x = 67,755.45