Finding the Fourth Proportional to 10,275.38, 14,180.12 and 5,559.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.38 : 14,180.12 = 5,559.76 : x
2. Step 2: Convert to fraction form
   10,275.38/14,180.12 = 5,559.76/x
3. Step 3: Cross multiply
   10,275.38x = 14,180.12 × 5,559.76
4. Step 4: Simplify right side
   10,275.38x = 78,838,021.57
5. Step 5: Solve for x
   x = 78,838,021.57/10,275.38
6. Step 6: Final answer
   x = 7,672.51