Finding the Fourth Proportional to 22,022.32, 30,380.88 and 13,070.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,022.32 : 30,380.88 = 13,070.20 : x
2. Step 2: Convert to fraction form
   22,022.32/30,380.88 = 13,070.20/x
3. Step 3: Cross multiply
   22,022.32x = 30,380.88 × 13,070.20
4. Step 4: Simplify right side
   22,022.32x = 397,084,177.78
5. Step 5: Solve for x
   x = 397,084,177.78/22,022.32
6. Step 6: Final answer
   x = 18,030.99