Finding the Fourth Proportional to 10,173.89, 14,039.84 and 5,697.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,173.89 : 14,039.84 = 5,697.61 : x
2. Step 2: Convert to fraction form
   10,173.89/14,039.84 = 5,697.61/x
3. Step 3: Cross multiply
   10,173.89x = 14,039.84 × 5,697.61
4. Step 4: Simplify right side
   10,173.89x = 79,993,434.10
5. Step 5: Solve for x
   x = 79,993,434.10/10,173.89
6. Step 6: Final answer
   x = 7,862.62