Finding the Fourth Proportional to 25,109.18, 34,650.57 and 13,778.86

Step by Step Solution

1. Step 1: Write the proportion equation
   25,109.18 : 34,650.57 = 13,778.86 : x
2. Step 2: Convert to fraction form
   25,109.18/34,650.57 = 13,778.86/x
3. Step 3: Cross multiply
   25,109.18x = 34,650.57 × 13,778.86
4. Step 4: Simplify right side
   25,109.18x = 477,445,344.59
5. Step 5: Solve for x
   x = 477,445,344.59/25,109.18
6. Step 6: Final answer
   x = 19,014.78