Finding the Fourth Proportional to 23,068.70, 31,834.90 and 12,997.29

Step by Step Solution

1. Step 1: Write the proportion equation
   23,068.70 : 31,834.90 = 12,997.29 : x
2. Step 2: Convert to fraction form
   23,068.70/31,834.90 = 12,997.29/x
3. Step 3: Cross multiply
   23,068.70x = 31,834.90 × 12,997.29
4. Step 4: Simplify right side
   23,068.70x = 413,767,257.89
5. Step 5: Solve for x
   x = 413,767,257.89/23,068.70
6. Step 6: Final answer
   x = 17,936.31