Finding the Fourth Proportional to 23,186.76, 31,995.59 and 13,116.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,186.76 : 31,995.59 = 13,116.08 : x
2. Step 2: Convert to fraction form
   23,186.76/31,995.59 = 13,116.08/x
3. Step 3: Cross multiply
   23,186.76x = 31,995.59 × 13,116.08
4. Step 4: Simplify right side
   23,186.76x = 419,656,492.53
5. Step 5: Solve for x
   x = 419,656,492.53/23,186.76
6. Step 6: Final answer
   x = 18,098.97