Finding the Fourth Proportional to 23,140.84, 31,934.38 and 12,530.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,140.84 : 31,934.38 = 12,530.49 : x
2. Step 2: Convert to fraction form
   23,140.84/31,934.38 = 12,530.49/x
3. Step 3: Cross multiply
   23,140.84x = 31,934.38 × 12,530.49
4. Step 4: Simplify right side
   23,140.84x = 400,153,429.25
5. Step 5: Solve for x
   x = 400,153,429.25/23,140.84
6. Step 6: Final answer
   x = 17,292.09