Finding the Fourth Proportional to 23,020.12, 31,759.86 and 12,946.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,020.12 : 31,759.86 = 12,946.84 : x
2. Step 2: Convert to fraction form
   23,020.12/31,759.86 = 12,946.84/x
3. Step 3: Cross multiply
   23,020.12x = 31,759.86 × 12,946.84
4. Step 4: Simplify right side
   23,020.12x = 411,189,825.84
5. Step 5: Solve for x
   x = 411,189,825.84/23,020.12
6. Step 6: Final answer
   x = 17,862.19