Finding the Fourth Proportional to 9,752.62, 13,448.16 and 7,862.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,752.62 : 13,448.16 = 7,862.20 : x
2. Step 2: Convert to fraction form
   9,752.62/13,448.16 = 7,862.20/x
3. Step 3: Cross multiply
   9,752.62x = 13,448.16 × 7,862.20
4. Step 4: Simplify right side
   9,752.62x = 105,732,123.55
5. Step 5: Solve for x
   x = 105,732,123.55/9,752.62
6. Step 6: Final answer
   x = 10,841.41