Finding the Fourth Proportional to 12,721.52, 17,554.82 and 7,344.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,721.52 : 17,554.82 = 7,344.17 : x
2. Step 2: Convert to fraction form
   12,721.52/17,554.82 = 7,344.17/x
3. Step 3: Cross multiply
   12,721.52x = 17,554.82 × 7,344.17
4. Step 4: Simplify right side
   12,721.52x = 128,925,457.90
5. Step 5: Solve for x
   x = 128,925,457.90/12,721.52
6. Step 6: Final answer
   x = 10,134.44