Finding the Fourth Proportional to 12,731.54, 17,567.60 and 7,141.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,731.54 : 17,567.60 = 7,141.46 : x
2. Step 2: Convert to fraction form
   12,731.54/17,567.60 = 7,141.46/x
3. Step 3: Cross multiply
   12,731.54x = 17,567.60 × 7,141.46
4. Step 4: Simplify right side
   12,731.54x = 125,458,189.15
5. Step 5: Solve for x
   x = 125,458,189.15/12,731.54
6. Step 6: Final answer
   x = 9,854.13