Finding the Fourth Proportional to 12,721.59, 17,551.83 and 7,343.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,721.59 : 17,551.83 = 7,343.34 : x
2. Step 2: Convert to fraction form
   12,721.59/17,551.83 = 7,343.34/x
3. Step 3: Cross multiply
   12,721.59x = 17,551.83 × 7,343.34
4. Step 4: Simplify right side
   12,721.59x = 128,889,055.31
5. Step 5: Solve for x
   x = 128,889,055.31/12,721.59
6. Step 6: Final answer
   x = 10,131.52