Finding the Fourth Proportional to 12,734.72, 17,573.91 and 7,429.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,734.72 : 17,573.91 = 7,429.57 : x
2. Step 2: Convert to fraction form
   12,734.72/17,573.91 = 7,429.57/x
3. Step 3: Cross multiply
   12,734.72x = 17,573.91 × 7,429.57
4. Step 4: Simplify right side
   12,734.72x = 130,566,663.37
5. Step 5: Solve for x
   x = 130,566,663.37/12,734.72
6. Step 6: Final answer
   x = 10,252.81