Finding the Fourth Proportional to 23,145.85, 31,941.29 and 12,535.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,145.85 : 31,941.29 = 12,535.53 : x
2. Step 2: Convert to fraction form
   23,145.85/31,941.29 = 12,535.53/x
3. Step 3: Cross multiply
   23,145.85x = 31,941.29 × 12,535.53
4. Step 4: Simplify right side
   23,145.85x = 400,400,999.03
5. Step 5: Solve for x
   x = 400,400,999.03/23,145.85
6. Step 6: Final answer
   x = 17,299.04