Finding the Fourth Proportional to 10,479.56, 14,458.27 and 7,116.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,479.56 : 14,458.27 = 7,116.54 : x
2. Step 2: Convert to fraction form
   10,479.56/14,458.27 = 7,116.54/x
3. Step 3: Cross multiply
   10,479.56x = 14,458.27 × 7,116.54
4. Step 4: Simplify right side
   10,479.56x = 102,892,821.20
5. Step 5: Solve for x
   x = 102,892,821.20/10,479.56
6. Step 6: Final answer
   x = 9,818.43