Finding the Fourth Proportional to 10,867.49, 16,302.42 and 3,470.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,867.49 : 16,302.42 = 3,470.21 : x
2. Step 2: Convert to fraction form
   10,867.49/16,302.42 = 3,470.21/x
3. Step 3: Cross multiply
   10,867.49x = 16,302.42 × 3,470.21
4. Step 4: Simplify right side
   10,867.49x = 56,572,820.91
5. Step 5: Solve for x
   x = 56,572,820.91/10,867.49
6. Step 6: Final answer
   x = 5,205.69