Finding the Fourth Proportional to 10,602.72, 14,617.98 and 6,819.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,602.72 : 14,617.98 = 6,819.12 : x
2. Step 2: Convert to fraction form
   10,602.72/14,617.98 = 6,819.12/x
3. Step 3: Cross multiply
   10,602.72x = 14,617.98 × 6,819.12
4. Step 4: Simplify right side
   10,602.72x = 99,681,759.78
5. Step 5: Solve for x
   x = 99,681,759.78/10,602.72
6. Step 6: Final answer
   x = 9,401.53