Finding the Fourth Proportional to 23,131.52, 31,919.10 and 13,060.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,131.52 : 31,919.10 = 13,060.52 : x
2. Step 2: Convert to fraction form
   23,131.52/31,919.10 = 13,060.52/x
3. Step 3: Cross multiply
   23,131.52x = 31,919.10 × 13,060.52
4. Step 4: Simplify right side
   23,131.52x = 416,880,043.93
5. Step 5: Solve for x
   x = 416,880,043.93/23,131.52
6. Step 6: Final answer
   x = 18,022.16