Finding the Fourth Proportional to 9,498.62, 13,111.72 and 8,502.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.62 : 13,111.72 = 8,502.12 : x
2. Step 2: Convert to fraction form
   9,498.62/13,111.72 = 8,502.12/x
3. Step 3: Cross multiply
   9,498.62x = 13,111.72 × 8,502.12
4. Step 4: Simplify right side
   9,498.62x = 111,477,416.85
5. Step 5: Solve for x
   x = 111,477,416.85/9,498.62
6. Step 6: Final answer
   x = 11,736.17