Finding the Fourth Proportional to 10,275.27, 14,179.89 and 5,559.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.27 : 14,179.89 = 5,559.55 : x
2. Step 2: Convert to fraction form
   10,275.27/14,179.89 = 5,559.55/x
3. Step 3: Cross multiply
   10,275.27x = 14,179.89 × 5,559.55
4. Step 4: Simplify right side
   10,275.27x = 78,833,736.55
5. Step 5: Solve for x
   x = 78,833,736.55/10,275.27
6. Step 6: Final answer
   x = 7,672.19