Finding the Fourth Proportional to 10,784.21, 16,176.17 and 3,389.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,784.21 : 16,176.17 = 3,389.12 : x
2. Step 2: Convert to fraction form
   10,784.21/16,176.17 = 3,389.12/x
3. Step 3: Cross multiply
   10,784.21x = 16,176.17 × 3,389.12
4. Step 4: Simplify right side
   10,784.21x = 54,822,964.32
5. Step 5: Solve for x
   x = 54,822,964.32/10,784.21
6. Step 6: Final answer
   x = 5,083.63