Finding the Fourth Proportional to 23,068.15, 31,834.04 and 12,457.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,068.15 : 31,834.04 = 12,457.78 : x
2. Step 2: Convert to fraction form
   23,068.15/31,834.04 = 12,457.78/x
3. Step 3: Cross multiply
   23,068.15x = 31,834.04 × 12,457.78
4. Step 4: Simplify right side
   23,068.15x = 396,581,466.83
5. Step 5: Solve for x
   x = 396,581,466.83/23,068.15
6. Step 6: Final answer
   x = 17,191.74