Finding the Fourth Proportional to 11,649.69, 17,474.74 and 3,858.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,649.69 : 17,474.74 = 3,858.71 : x
2. Step 2: Convert to fraction form
   11,649.69/17,474.74 = 3,858.71/x
3. Step 3: Cross multiply
   11,649.69x = 17,474.74 × 3,858.71
4. Step 4: Simplify right side
   11,649.69x = 67,429,856.96
5. Step 5: Solve for x
   x = 67,429,856.96/11,649.69
6. Step 6: Final answer
   x = 5,788.12