Finding the Fourth Proportional to 22,534.72, 31,096.92 and 12,974.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,534.72 : 31,096.92 = 12,974.20 : x
2. Step 2: Convert to fraction form
   22,534.72/31,096.92 = 12,974.20/x
3. Step 3: Cross multiply
   22,534.72x = 31,096.92 × 12,974.20
4. Step 4: Simplify right side
   22,534.72x = 403,457,659.46
5. Step 5: Solve for x
   x = 403,457,659.46/22,534.72
6. Step 6: Final answer
   x = 17,903.82