Finding the Fourth Proportional to 12,712.38, 17,543.52 and 7,047.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,712.38 : 17,543.52 = 7,047.06 : x
2. Step 2: Convert to fraction form
   12,712.38/17,543.52 = 7,047.06/x
3. Step 3: Cross multiply
   12,712.38x = 17,543.52 × 7,047.06
4. Step 4: Simplify right side
   12,712.38x = 123,630,238.05
5. Step 5: Solve for x
   x = 123,630,238.05/12,712.38
6. Step 6: Final answer
   x = 9,725.18