Finding the Fourth Proportional to 22,279.40, 30,713.02 and 16,965

Step by Step Solution

1. Step 1: Write the proportion equation
   22,279.40 : 30,713.02 = 16,965 : x
2. Step 2: Convert to fraction form
   22,279.40/30,713.02 = 16,965/x
3. Step 3: Cross multiply
   22,279.40x = 30,713.02 × 16,965
4. Step 4: Simplify right side
   22,279.40x = 521,046,384.30
5. Step 5: Solve for x
   x = 521,046,384.30/22,279.40
6. Step 6: Final answer
   x = 23,386.91