Finding the Fourth Proportional to 22,291.28, 30,748.84 and 13,796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,291.28 : 30,748.84 = 13,796.72 : x
2. Step 2: Convert to fraction form
   22,291.28/30,748.84 = 13,796.72/x
3. Step 3: Cross multiply
   22,291.28x = 30,748.84 × 13,796.72
4. Step 4: Simplify right side
   22,291.28x = 424,233,135.80
5. Step 5: Solve for x
   x = 424,233,135.80/22,291.28
6. Step 6: Final answer
   x = 19,031.35