Finding the Fourth Proportional to 12,734.52, 17,573.70 and 7,145.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,734.52 : 17,573.70 = 7,145.52 : x
2. Step 2: Convert to fraction form
   12,734.52/17,573.70 = 7,145.52/x
3. Step 3: Cross multiply
   12,734.52x = 17,573.70 × 7,145.52
4. Step 4: Simplify right side
   12,734.52x = 125,573,224.82
5. Step 5: Solve for x
   x = 125,573,224.82/12,734.52
6. Step 6: Final answer
   x = 9,860.85