Finding the Fourth Proportional to 12,913.02, 17,820.27 and 7,324.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913.02 : 17,820.27 = 7,324.02 : x
2. Step 2: Convert to fraction form
   12,913.02/17,820.27 = 7,324.02/x
3. Step 3: Cross multiply
   12,913.02x = 17,820.27 × 7,324.02
4. Step 4: Simplify right side
   12,913.02x = 130,516,013.89
5. Step 5: Solve for x
   x = 130,516,013.89/12,913.02
6. Step 6: Final answer
   x = 10,107.32