Finding the Fourth Proportional to 23,054.71, 31,816.26 and 12,983.33

Step by Step Solution

1. Step 1: Write the proportion equation
   23,054.71 : 31,816.26 = 12,983.33 : x
2. Step 2: Convert to fraction form
   23,054.71/31,816.26 = 12,983.33/x
3. Step 3: Cross multiply
   23,054.71x = 31,816.26 × 12,983.33
4. Step 4: Simplify right side
   23,054.71x = 413,081,002.95
5. Step 5: Solve for x
   x = 413,081,002.95/23,054.71
6. Step 6: Final answer
   x = 17,917.42