Finding the Fourth Proportional to 16,712.96, 25,072.32 and 5,620.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,712.96 : 25,072.32 = 5,620.72 : x
2. Step 2: Convert to fraction form
   16,712.96/25,072.32 = 5,620.72/x
3. Step 3: Cross multiply
   16,712.96x = 25,072.32 × 5,620.72
4. Step 4: Simplify right side
   16,712.96x = 140,924,490.47
5. Step 5: Solve for x
   x = 140,924,490.47/16,712.96
6. Step 6: Final answer
   x = 8,432.05