Finding the Fourth Proportional to 16,721.34, 25,066.29 and 5,620.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,721.34 : 25,066.29 = 5,620.24 : x
2. Step 2: Convert to fraction form
   16,721.34/25,066.29 = 5,620.24/x
3. Step 3: Cross multiply
   16,721.34x = 25,066.29 × 5,620.24
4. Step 4: Simplify right side
   16,721.34x = 140,878,565.71
5. Step 5: Solve for x
   x = 140,878,565.71/16,721.34
6. Step 6: Final answer
   x = 8,425.08