Finding the Fourth Proportional to 89,408.10, 123,385.35 and 49,124.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89,408.10 : 123,385.35 = 49,124.47 : x
2. Step 2: Convert to fraction form
   89,408.10/123,385.35 = 49,124.47/x
3. Step 3: Cross multiply
   89,408.10x = 123,385.35 × 49,124.47
4. Step 4: Simplify right side
   89,408.10x = 6,061,239,924.51
5. Step 5: Solve for x
   x = 6,061,239,924.51/89,408.10
6. Step 6: Final answer
   x = 67,792.96