Finding the Fourth Proportional to 24,978.85, 34,471.05 and 13,648.69

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.85 : 34,471.05 = 13,648.69 : x
2. Step 2: Convert to fraction form
   24,978.85/34,471.05 = 13,648.69/x
3. Step 3: Cross multiply
   24,978.85x = 34,471.05 × 13,648.69
4. Step 4: Simplify right side
   24,978.85x = 470,484,675.42
5. Step 5: Solve for x
   x = 470,484,675.42/24,978.85
6. Step 6: Final answer
   x = 18,835.32