Finding the Fourth Proportional to 22,434.48, 30,958.92 and 12,875.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,434.48 : 30,958.92 = 12,875.76 : x
2. Step 2: Convert to fraction form
   22,434.48/30,958.92 = 12,875.76/x
3. Step 3: Cross multiply
   22,434.48x = 30,958.92 × 12,875.76
4. Step 4: Simplify right side
   22,434.48x = 398,619,623.78
5. Step 5: Solve for x
   x = 398,619,623.78/22,434.48
6. Step 6: Final answer
   x = 17,768.17