Finding the Fourth Proportional to 22,496.60, 31,047.18 and 12,425.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,496.60 : 31,047.18 = 12,425.96 : x
2. Step 2: Convert to fraction form
   22,496.60/31,047.18 = 12,425.96/x
3. Step 3: Cross multiply
   22,496.60x = 31,047.18 × 12,425.96
4. Step 4: Simplify right side
   22,496.60x = 385,791,016.79
5. Step 5: Solve for x
   x = 385,791,016.79/22,496.60
6. Step 6: Final answer
   x = 17,148.86