Finding the Fourth Proportional to 22,396.08, 30,910.68 and 12,965.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,396.08 : 30,910.68 = 12,965.52 : x
2. Step 2: Convert to fraction form
   22,396.08/30,910.68 = 12,965.52/x
3. Step 3: Cross multiply
   22,396.08x = 30,910.68 × 12,965.52
4. Step 4: Simplify right side
   22,396.08x = 400,773,039.75
5. Step 5: Solve for x
   x = 400,773,039.75/22,396.08
6. Step 6: Final answer
   x = 17,894.79