Finding the Fourth Proportional to 10,699.28, 16,012.16 and 6,748.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,699.28 : 16,012.16 = 6,748.71 : x
2. Step 2: Convert to fraction form
   10,699.28/16,012.16 = 6,748.71/x
3. Step 3: Cross multiply
   10,699.28x = 16,012.16 × 6,748.71
4. Step 4: Simplify right side
   10,699.28x = 108,061,424.31
5. Step 5: Solve for x
   x = 108,061,424.31/10,699.28
6. Step 6: Final answer
   x = 10,099.88