Finding the Fourth Proportional to 22,898.31, 31,600.85 and 12,826.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,898.31 : 31,600.85 = 12,826.15 : x
2. Step 2: Convert to fraction form
   22,898.31/31,600.85 = 12,826.15/x
3. Step 3: Cross multiply
   22,898.31x = 31,600.85 × 12,826.15
4. Step 4: Simplify right side
   22,898.31x = 405,317,242.23
5. Step 5: Solve for x
   x = 405,317,242.23/22,898.31
6. Step 6: Final answer
   x = 17,700.75