Finding the Fourth Proportional to 12,758.25, 19,138.46 and 3,524.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,758.25 : 19,138.46 = 3,524.25 : x
2. Step 2: Convert to fraction form
   12,758.25/19,138.46 = 3,524.25/x
3. Step 3: Cross multiply
   12,758.25x = 19,138.46 × 3,524.25
4. Step 4: Simplify right side
   12,758.25x = 67,448,700.03
5. Step 5: Solve for x
   x = 67,448,700.03/12,758.25
6. Step 6: Final answer
   x = 5,286.67