Finding the Fourth Proportional to 10,173.42, 14,034.87 and 5,979.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,173.42 : 14,034.87 = 5,979.78 : x
2. Step 2: Convert to fraction form
   10,173.42/14,034.87 = 5,979.78/x
3. Step 3: Cross multiply
   10,173.42x = 14,034.87 × 5,979.78
4. Step 4: Simplify right side
   10,173.42x = 83,925,434.93
5. Step 5: Solve for x
   x = 83,925,434.93/10,173.42
6. Step 6: Final answer
   x = 8,249.48