Finding the Fourth Proportional to 9,632.62, 13,281.06 and 8,116.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,632.62 : 13,281.06 = 8,116.30 : x
2. Step 2: Convert to fraction form
   9,632.62/13,281.06 = 8,116.30/x
3. Step 3: Cross multiply
   9,632.62x = 13,281.06 × 8,116.30
4. Step 4: Simplify right side
   9,632.62x = 107,793,067.28
5. Step 5: Solve for x
   x = 107,793,067.28/9,632.62
6. Step 6: Final answer
   x = 11,190.42