Finding the Fourth Proportional to 22,086.39, 30,479.34 and 13,132.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,086.39 : 30,479.34 = 13,132.15 : x
2. Step 2: Convert to fraction form
   22,086.39/30,479.34 = 13,132.15/x
3. Step 3: Cross multiply
   22,086.39x = 30,479.34 × 13,132.15
4. Step 4: Simplify right side
   22,086.39x = 400,259,264.78
5. Step 5: Solve for x
   x = 400,259,264.78/22,086.39
6. Step 6: Final answer
   x = 18,122.44