Finding the Fourth Proportional to 12,185.24, 18,275.23 and 7,116.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,185.24 : 18,275.23 = 7,116.05 : x
2. Step 2: Convert to fraction form
   12,185.24/18,275.23 = 7,116.05/x
3. Step 3: Cross multiply
   12,185.24x = 18,275.23 × 7,116.05
4. Step 4: Simplify right side
   12,185.24x = 130,047,367.96
5. Step 5: Solve for x
   x = 130,047,367.96/12,185.24
6. Step 6: Final answer
   x = 10,672.53