Finding the Fourth Proportional to 12,565.48, 18,851.33 and 3,800.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,565.48 : 18,851.33 = 3,800.39 : x
2. Step 2: Convert to fraction form
   12,565.48/18,851.33 = 3,800.39/x
3. Step 3: Cross multiply
   12,565.48x = 18,851.33 × 3,800.39
4. Step 4: Simplify right side
   12,565.48x = 71,642,480.32
5. Step 5: Solve for x
   x = 71,642,480.32/12,565.48
6. Step 6: Final answer
   x = 5,701.53