Finding the Fourth Proportional to 12,713.06, 17,543.37 and 7,047.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,713.06 : 17,543.37 = 7,047.74 : x
2. Step 2: Convert to fraction form
   12,713.06/17,543.37 = 7,047.74/x
3. Step 3: Cross multiply
   12,713.06x = 17,543.37 × 7,047.74
4. Step 4: Simplify right side
   12,713.06x = 123,641,110.48
5. Step 5: Solve for x
   x = 123,641,110.48/12,713.06
6. Step 6: Final answer
   x = 9,725.52