Finding the Fourth Proportional to 90,523.89, 124,923.69 and 54,737.73

Step by Step Solution

1. Step 1: Write the proportion equation
   90,523.89 : 124,923.69 = 54,737.73 : x
2. Step 2: Convert to fraction form
   90,523.89/124,923.69 = 54,737.73/x
3. Step 3: Cross multiply
   90,523.89x = 124,923.69 × 54,737.73
4. Step 4: Simplify right side
   90,523.89x = 6,838,039,213.82
5. Step 5: Solve for x
   x = 6,838,039,213.82/90,523.89
6. Step 6: Final answer
   x = 75,538.50