Finding the Fourth Proportional to 24,978.61, 34,469.94 and 13,647.79

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.61 : 34,469.94 = 13,647.79 : x
2. Step 2: Convert to fraction form
   24,978.61/34,469.94 = 13,647.79/x
3. Step 3: Cross multiply
   24,978.61x = 34,469.94 × 13,647.79
4. Step 4: Simplify right side
   24,978.61x = 470,438,502.43
5. Step 5: Solve for x
   x = 470,438,502.43/24,978.61
6. Step 6: Final answer
   x = 18,833.65