Finding the Fourth Proportional to 11,191.30, 16,786.22 and 3,400.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,191.30 : 16,786.22 = 3,400.18 : x
2. Step 2: Convert to fraction form
   11,191.30/16,786.22 = 3,400.18/x
3. Step 3: Cross multiply
   11,191.30x = 16,786.22 × 3,400.18
4. Step 4: Simplify right side
   11,191.30x = 57,076,169.52
5. Step 5: Solve for x
   x = 57,076,169.52/11,191.30
6. Step 6: Final answer
   x = 5,100.05