Finding the Fourth Proportional to 13,242.52, 18,274.92 and 7,274.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,242.52 : 18,274.92 = 7,274.56 : x
2. Step 2: Convert to fraction form
   13,242.52/18,274.92 = 7,274.56/x
3. Step 3: Cross multiply
   13,242.52x = 18,274.92 × 7,274.56
4. Step 4: Simplify right side
   13,242.52x = 132,942,002.04
5. Step 5: Solve for x
   x = 132,942,002.04/13,242.52
6. Step 6: Final answer
   x = 10,039.03