Finding the Fourth Proportional to 23,111.80, 31,894.28 and 12,501.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.80 : 31,894.28 = 12,501.42 : x
2. Step 2: Convert to fraction form
   23,111.80/31,894.28 = 12,501.42/x
3. Step 3: Cross multiply
   23,111.80x = 31,894.28 × 12,501.42
4. Step 4: Simplify right side
   23,111.80x = 398,723,789.88
5. Step 5: Solve for x
   x = 398,723,789.88/23,111.80
6. Step 6: Final answer
   x = 17,251.96