Finding the Fourth Proportional to 17,721.83, 24,439.69 and 12,934.19

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.83 : 24,439.69 = 12,934.19 : x
2. Step 2: Convert to fraction form
   17,721.83/24,439.69 = 12,934.19/x
3. Step 3: Cross multiply
   17,721.83x = 24,439.69 × 12,934.19
4. Step 4: Simplify right side
   17,721.83x = 316,107,471.80
5. Step 5: Solve for x
   x = 316,107,471.80/17,721.83
6. Step 6: Final answer
   x = 17,837.19