Finding the Fourth Proportional to 23,010.86, 31,754.83 and 12,939.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,010.86 : 31,754.83 = 12,939.32 : x
2. Step 2: Convert to fraction form
   23,010.86/31,754.83 = 12,939.32/x
3. Step 3: Cross multiply
   23,010.86x = 31,754.83 × 12,939.32
4. Step 4: Simplify right side
   23,010.86x = 410,885,906.92
5. Step 5: Solve for x
   x = 410,885,906.92/23,010.86
6. Step 6: Final answer
   x = 17,856.17