Finding the Fourth Proportional to 10,514.56, 14,520.96 and 7,172.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,514.56 : 14,520.96 = 7,172.16 : x
2. Step 2: Convert to fraction form
   10,514.56/14,520.96 = 7,172.16/x
3. Step 3: Cross multiply
   10,514.56x = 14,520.96 × 7,172.16
4. Step 4: Simplify right side
   10,514.56x = 104,146,648.47
5. Step 5: Solve for x
   x = 104,146,648.47/10,514.56
6. Step 6: Final answer
   x = 9,904.99