Finding the Fourth Proportional to 21,423.76, 32,139.98 and 7,582.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,423.76 : 32,139.98 = 7,582.48 : x
2. Step 2: Convert to fraction form
   21,423.76/32,139.98 = 7,582.48/x
3. Step 3: Cross multiply
   21,423.76x = 32,139.98 × 7,582.48
4. Step 4: Simplify right side
   21,423.76x = 243,700,755.55
5. Step 5: Solve for x
   x = 243,700,755.55/21,423.76
6. Step 6: Final answer
   x = 11,375.26