Finding the Fourth Proportional to 9,124.20, 12,585.24 and 5,582.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.20 : 12,585.24 = 5,582.88 : x
2. Step 2: Convert to fraction form
   9,124.20/12,585.24 = 5,582.88/x
3. Step 3: Cross multiply
   9,124.20x = 12,585.24 × 5,582.88
4. Step 4: Simplify right side
   9,124.20x = 70,261,884.69
5. Step 5: Solve for x
   x = 70,261,884.69/9,124.20
6. Step 6: Final answer
   x = 7,700.61