Finding the Fourth Proportional to 22,938.96, 31,657.37 and 12,730.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,938.96 : 31,657.37 = 12,730.51 : x
2. Step 2: Convert to fraction form
   22,938.96/31,657.37 = 12,730.51/x
3. Step 3: Cross multiply
   22,938.96x = 31,657.37 × 12,730.51
4. Step 4: Simplify right side
   22,938.96x = 403,014,441.28
5. Step 5: Solve for x
   x = 403,014,441.28/22,938.96
6. Step 6: Final answer
   x = 17,568.99