Finding the Fourth Proportional to 13,225.86, 19,839.69 and 3,866.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,225.86 : 19,839.69 = 3,866.10 : x
2. Step 2: Convert to fraction form
   13,225.86/19,839.69 = 3,866.10/x
3. Step 3: Cross multiply
   13,225.86x = 19,839.69 × 3,866.10
4. Step 4: Simplify right side
   13,225.86x = 76,702,225.51
5. Step 5: Solve for x
   x = 76,702,225.51/13,225.86
6. Step 6: Final answer
   x = 5,799.41