Finding the Fourth Proportional to 89,904.83, 124,068.56 and 49,618.61

Step by Step Solution

1. Step 1: Write the proportion equation
   89,904.83 : 124,068.56 = 49,618.61 : x
2. Step 2: Convert to fraction form
   89,904.83/124,068.56 = 49,618.61/x
3. Step 3: Cross multiply
   89,904.83x = 124,068.56 × 49,618.61
4. Step 4: Simplify right side
   89,904.83x = 6,156,109,243.81
5. Step 5: Solve for x
   x = 6,156,109,243.81/89,904.83
6. Step 6: Final answer
   x = 68,473.62