Finding the Fourth Proportional to 22,227.32, 30,681.42 and 12,799.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,227.32 : 30,681.42 = 12,799.64 : x
2. Step 2: Convert to fraction form
   22,227.32/30,681.42 = 12,799.64/x
3. Step 3: Cross multiply
   22,227.32x = 30,681.42 × 12,799.64
4. Step 4: Simplify right side
   22,227.32x = 392,711,130.69
5. Step 5: Solve for x
   x = 392,711,130.69/22,227.32
6. Step 6: Final answer
   x = 17,667.95