Finding the Fourth Proportional to 24,978.84, 34,469.76 and 13,648.08

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.84 : 34,469.76 = 13,648.08 : x
2. Step 2: Convert to fraction form
   24,978.84/34,469.76 = 13,648.08/x
3. Step 3: Cross multiply
   24,978.84x = 34,469.76 × 13,648.08
4. Step 4: Simplify right side
   24,978.84x = 470,446,042.06
5. Step 5: Solve for x
   x = 470,446,042.06/24,978.84
6. Step 6: Final answer
   x = 18,833.78