Finding the Fourth Proportional to 21,411.09, 32,113.49 and 12,530.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,411.09 : 32,113.49 = 12,530.52 : x
2. Step 2: Convert to fraction form
   21,411.09/32,113.49 = 12,530.52/x
3. Step 3: Cross multiply
   21,411.09x = 32,113.49 × 12,530.52
4. Step 4: Simplify right side
   21,411.09x = 402,398,666.06
5. Step 5: Solve for x
   x = 402,398,666.06/21,411.09
6. Step 6: Final answer
   x = 18,793.94