Finding the Fourth Proportional to 22,132.90, 30,543.28 and 12,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,132.90 : 30,543.28 = 12,704.50 : x
2. Step 2: Convert to fraction form
   22,132.90/30,543.28 = 12,704.50/x
3. Step 3: Cross multiply
   22,132.90x = 30,543.28 × 12,704.50
4. Step 4: Simplify right side
   22,132.90x = 388,037,100.76
5. Step 5: Solve for x
   x = 388,037,100.76/22,132.90
6. Step 6: Final answer
   x = 17,532.14