Finding the Fourth Proportional to 42,568.45, 63,859.43 and 14,491.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,568.45 : 63,859.43 = 14,491.15 : x
2. Step 2: Convert to fraction form
   42,568.45/63,859.43 = 14,491.15/x
3. Step 3: Cross multiply
   42,568.45x = 63,859.43 × 14,491.15
4. Step 4: Simplify right side
   42,568.45x = 925,396,506.59
5. Step 5: Solve for x
   x = 925,396,506.59/42,568.45
6. Step 6: Final answer
   x = 21,739.02