Finding the Fourth Proportional to 10,275.20, 14,179.74 and 5,559.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.20 : 14,179.74 = 5,559.46 : x
2. Step 2: Convert to fraction form
   10,275.20/14,179.74 = 5,559.46/x
3. Step 3: Cross multiply
   10,275.20x = 14,179.74 × 5,559.46
4. Step 4: Simplify right side
   10,275.20x = 78,831,697.34
5. Step 5: Solve for x
   x = 78,831,697.34/10,275.20
6. Step 6: Final answer
   x = 7,672.04