Finding the Fourth Proportional to 22,225.79, 30,672.47 and 13,271.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,225.79 : 30,672.47 = 13,271.24 : x
2. Step 2: Convert to fraction form
   22,225.79/30,672.47 = 13,271.24/x
3. Step 3: Cross multiply
   22,225.79x = 30,672.47 × 13,271.24
4. Step 4: Simplify right side
   22,225.79x = 407,061,710.76
5. Step 5: Solve for x
   x = 407,061,710.76/22,225.79
6. Step 6: Final answer
   x = 18,314.84