Finding the Fourth Proportional to 14,388.38, 21,581.02 and 3,859.46

Step by Step Solution

1. Step 1: Write the proportion equation
   14,388.38 : 21,581.02 = 3,859.46 : x
2. Step 2: Convert to fraction form
   14,388.38/21,581.02 = 3,859.46/x
3. Step 3: Cross multiply
   14,388.38x = 21,581.02 × 3,859.46
4. Step 4: Simplify right side
   14,388.38x = 83,291,064.15
5. Step 5: Solve for x
   x = 83,291,064.15/14,388.38
6. Step 6: Final answer
   x = 5,788.77