Finding the Fourth Proportional to 12,929.10, 17,839.35 and 7,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.10 : 17,839.35 = 7,340.10 : x
2. Step 2: Convert to fraction form
   12,929.10/17,839.35 = 7,340.10/x
3. Step 3: Cross multiply
   12,929.10x = 17,839.35 × 7,340.10
4. Step 4: Simplify right side
   12,929.10x = 130,942,612.94
5. Step 5: Solve for x
   x = 130,942,612.94/12,929.10
6. Step 6: Final answer
   x = 10,127.74