Finding the Fourth Proportional to 21,965.34, 30,314.34 and 12,535.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,965.34 : 30,314.34 = 12,535.32 : x
2. Step 2: Convert to fraction form
   21,965.34/30,314.34 = 12,535.32/x
3. Step 3: Cross multiply
   21,965.34x = 30,314.34 × 12,535.32
4. Step 4: Simplify right side
   21,965.34x = 379,999,952.49
5. Step 5: Solve for x
   x = 379,999,952.49/21,965.34
6. Step 6: Final answer
   x = 17,299.98