Finding the Fourth Proportional to 22,108.68, 30,499.66 and 13,151.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,108.68 : 30,499.66 = 13,151.16 : x
2. Step 2: Convert to fraction form
   22,108.68/30,499.66 = 13,151.16/x
3. Step 3: Cross multiply
   22,108.68x = 30,499.66 × 13,151.16
4. Step 4: Simplify right side
   22,108.68x = 401,105,908.61
5. Step 5: Solve for x
   x = 401,105,908.61/22,108.68
6. Step 6: Final answer
   x = 18,142.46