Finding the Fourth Proportional to 10,275.64, 14,180.18 and 5,559.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.64 : 14,180.18 = 5,559.88 : x
2. Step 2: Convert to fraction form
   10,275.64/14,180.18 = 5,559.88/x
3. Step 3: Cross multiply
   10,275.64x = 14,180.18 × 5,559.88
4. Step 4: Simplify right side
   10,275.64x = 78,840,099.18
5. Step 5: Solve for x
   x = 78,840,099.18/10,275.64
6. Step 6: Final answer
   x = 7,672.52