Finding the Fourth Proportional to 14,106.69, 21,161.32 and 3,718.44

Step by Step Solution

1. Step 1: Write the proportion equation
   14,106.69 : 21,161.32 = 3,718.44 : x
2. Step 2: Convert to fraction form
   14,106.69/21,161.32 = 3,718.44/x
3. Step 3: Cross multiply
   14,106.69x = 21,161.32 × 3,718.44
4. Step 4: Simplify right side
   14,106.69x = 78,687,080.15
5. Step 5: Solve for x
   x = 78,687,080.15/14,106.69
6. Step 6: Final answer
   x = 5,578.00