Finding the Fourth Proportional to 7,488.57, 10,334.24 and 4,085.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,488.57 : 10,334.24 = 4,085.61 : x
2. Step 2: Convert to fraction form
   7,488.57/10,334.24 = 4,085.61/x
3. Step 3: Cross multiply
   7,488.57x = 10,334.24 × 4,085.61
4. Step 4: Simplify right side
   7,488.57x = 42,221,653.86
5. Step 5: Solve for x
   x = 42,221,653.86/7,488.57
6. Step 6: Final answer
   x = 5,638.15