Finding the Fourth Proportional to 9,498.61, 13,111.74 and 8,502.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.61 : 13,111.74 = 8,502.13 : x
2. Step 2: Convert to fraction form
   9,498.61/13,111.74 = 8,502.13/x
3. Step 3: Cross multiply
   9,498.61x = 13,111.74 × 8,502.13
4. Step 4: Simplify right side
   9,498.61x = 111,477,718.01
5. Step 5: Solve for x
   x = 111,477,718.01/9,498.61
6. Step 6: Final answer
   x = 11,736.21