Finding the Fourth Proportional to 23,011, 31,755.37 and 12,939.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,011 : 31,755.37 = 12,939.35 : x
2. Step 2: Convert to fraction form
   23,011/31,755.37 = 12,939.35/x
3. Step 3: Cross multiply
   23,011x = 31,755.37 × 12,939.35
4. Step 4: Simplify right side
   23,011x = 410,893,893.85
5. Step 5: Solve for x
   x = 410,893,893.85/23,011
6. Step 6: Final answer
   x = 17,856.41