Finding the Fourth Proportional to 89,919.86, 124,088.72 and 49,633.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,919.86 : 124,088.72 = 49,633.62 : x
2. Step 2: Convert to fraction form
   89,919.86/124,088.72 = 49,633.62/x
3. Step 3: Cross multiply
   89,919.86x = 124,088.72 × 49,633.62
4. Step 4: Simplify right side
   89,919.86x = 6,158,972,374.77
5. Step 5: Solve for x
   x = 6,158,972,374.77/89,919.86
6. Step 6: Final answer
   x = 68,494.02