Finding the Fourth Proportional to 16,401.68, 24,602.72 and 4,715

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.68 : 24,602.72 = 4,715 : x
2. Step 2: Convert to fraction form
   16,401.68/24,602.72 = 4,715/x
3. Step 3: Cross multiply
   16,401.68x = 24,602.72 × 4,715
4. Step 4: Simplify right side
   16,401.68x = 116,001,824.80
5. Step 5: Solve for x
   x = 116,001,824.80/16,401.68
6. Step 6: Final answer
   x = 7,072.56