Finding the Fourth Proportional to 10,369.72, 14,309.52 and 6,120.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,369.72 : 14,309.52 = 6,120.56 : x
2. Step 2: Convert to fraction form
   10,369.72/14,309.52 = 6,120.56/x
3. Step 3: Cross multiply
   10,369.72x = 14,309.52 × 6,120.56
4. Step 4: Simplify right side
   10,369.72x = 87,582,275.73
5. Step 5: Solve for x
   x = 87,582,275.73/10,369.72
6. Step 6: Final answer
   x = 8,445.96