Finding the Fourth Proportional to 12,931.23, 17,845.10 and 7,342.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931.23 : 17,845.10 = 7,342.23 : x
2. Step 2: Convert to fraction form
   12,931.23/17,845.10 = 7,342.23/x
3. Step 3: Cross multiply
   12,931.23x = 17,845.10 × 7,342.23
4. Step 4: Simplify right side
   12,931.23x = 131,022,791.86
5. Step 5: Solve for x
   x = 131,022,791.86/12,931.23
6. Step 6: Final answer
   x = 10,132.28