Finding the Fourth Proportional to 10,798.56, 16,187.31 and 5,251.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,798.56 : 16,187.31 = 5,251.68 : x
2. Step 2: Convert to fraction form
   10,798.56/16,187.31 = 5,251.68/x
3. Step 3: Cross multiply
   10,798.56x = 16,187.31 × 5,251.68
4. Step 4: Simplify right side
   10,798.56x = 85,010,572.18
5. Step 5: Solve for x
   x = 85,010,572.18/10,798.56
6. Step 6: Final answer
   x = 7,872.40