Finding the Fourth Proportional to 7,752.43, 10,697.88 and 4,215.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,752.43 : 10,697.88 = 4,215.61 : x
2. Step 2: Convert to fraction form
   7,752.43/10,697.88 = 4,215.61/x
3. Step 3: Cross multiply
   7,752.43x = 10,697.88 × 4,215.61
4. Step 4: Simplify right side
   7,752.43x = 45,098,089.91
5. Step 5: Solve for x
   x = 45,098,089.91/7,752.43
6. Step 6: Final answer
   x = 5,817.28