Finding the Fourth Proportional to 22,957.48, 31,679.61 and 12,749.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,957.48 : 31,679.61 = 12,749.09 : x
2. Step 2: Convert to fraction form
   22,957.48/31,679.61 = 12,749.09/x
3. Step 3: Cross multiply
   22,957.48x = 31,679.61 × 12,749.09
4. Step 4: Simplify right side
   22,957.48x = 403,886,171.05
5. Step 5: Solve for x
   x = 403,886,171.05/22,957.48
6. Step 6: Final answer
   x = 17,592.79