Finding the Fourth Proportional to 10,274.79, 14,179.29 and 5,559.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.79 : 14,179.29 = 5,559.06 : x
2. Step 2: Convert to fraction form
   10,274.79/14,179.29 = 5,559.06/x
3. Step 3: Cross multiply
   10,274.79x = 14,179.29 × 5,559.06
4. Step 4: Simplify right side
   10,274.79x = 78,823,523.87
5. Step 5: Solve for x
   x = 78,823,523.87/10,274.79
6. Step 6: Final answer
   x = 7,671.55