Finding the Fourth Proportional to 90,340.31, 124,672.91 and 54,523.33

Step by Step Solution

1. Step 1: Write the proportion equation
   90,340.31 : 124,672.91 = 54,523.33 : x
2. Step 2: Convert to fraction form
   90,340.31/124,672.91 = 54,523.33/x
3. Step 3: Cross multiply
   90,340.31x = 124,672.91 × 54,523.33
4. Step 4: Simplify right side
   90,340.31x = 6,797,581,629.69
5. Step 5: Solve for x
   x = 6,797,581,629.69/90,340.31
6. Step 6: Final answer
   x = 75,244.17