Finding the Fourth Proportional to 21,965.46, 30,314.52 and 12,535.44

Step by Step Solution

1. Step 1: Write the proportion equation
   21,965.46 : 30,314.52 = 12,535.44 : x
2. Step 2: Convert to fraction form
   21,965.46/30,314.52 = 12,535.44/x
3. Step 3: Cross multiply
   21,965.46x = 30,314.52 × 12,535.44
4. Step 4: Simplify right side
   21,965.46x = 380,005,846.59
5. Step 5: Solve for x
   x = 380,005,846.59/21,965.46
6. Step 6: Final answer
   x = 17,300.15