Finding the Fourth Proportional to 22,322.32, 30,793.18 and 13,242.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,322.32 : 30,793.18 = 13,242.40 : x
2. Step 2: Convert to fraction form
   22,322.32/30,793.18 = 13,242.40/x
3. Step 3: Cross multiply
   22,322.32x = 30,793.18 × 13,242.40
4. Step 4: Simplify right side
   22,322.32x = 407,775,606.83
5. Step 5: Solve for x
   x = 407,775,606.83/22,322.32
6. Step 6: Final answer
   x = 18,267.62