Finding the Fourth Proportional to 90,401.76, 124,757.64 and 54,584.82

Step by Step Solution

1. Step 1: Write the proportion equation
   90,401.76 : 124,757.64 = 54,584.82 : x
2. Step 2: Convert to fraction form
   90,401.76/124,757.64 = 54,584.82/x
3. Step 3: Cross multiply
   90,401.76x = 124,757.64 × 54,584.82
4. Step 4: Simplify right side
   90,401.76x = 6,809,873,323.02
5. Step 5: Solve for x
   x = 6,809,873,323.02/90,401.76
6. Step 6: Final answer
   x = 75,328.99