Finding the Fourth Proportional to 90,410.43, 124,773.78 and 50,136.82

Step by Step Solution

1. Step 1: Write the proportion equation
   90,410.43 : 124,773.78 = 50,136.82 : x
2. Step 2: Convert to fraction form
   90,410.43/124,773.78 = 50,136.82/x
3. Step 3: Cross multiply
   90,410.43x = 124,773.78 × 50,136.82
4. Step 4: Simplify right side
   90,410.43x = 6,255,760,548.58
5. Step 5: Solve for x
   x = 6,255,760,548.58/90,410.43
6. Step 6: Final answer
   x = 69,192.91