Finding the Fourth Proportional to 24,780.29, 34,196.83 and 13,449.78

Step by Step Solution

1. Step 1: Write the proportion equation
   24,780.29 : 34,196.83 = 13,449.78 : x
2. Step 2: Convert to fraction form
   24,780.29/34,196.83 = 13,449.78/x
3. Step 3: Cross multiply
   24,780.29x = 34,196.83 × 13,449.78
4. Step 4: Simplify right side
   24,780.29x = 459,939,934.81
5. Step 5: Solve for x
   x = 459,939,934.81/24,780.29
6. Step 6: Final answer
   x = 18,560.72