Finding the Fourth Proportional to 21,938.52, 30,275.84 and 12,002.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,938.52 : 30,275.84 = 12,002.52 : x
2. Step 2: Convert to fraction form
   21,938.52/30,275.84 = 12,002.52/x
3. Step 3: Cross multiply
   21,938.52x = 30,275.84 × 12,002.52
4. Step 4: Simplify right side
   21,938.52x = 363,386,375.12
5. Step 5: Solve for x
   x = 363,386,375.12/21,938.52
6. Step 6: Final answer
   x = 16,563.85