Finding the Fourth Proportional to 11,189.13, 16,780.27 and 3,691.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,189.13 : 16,780.27 = 3,691.31 : x
2. Step 2: Convert to fraction form
   11,189.13/16,780.27 = 3,691.31/x
3. Step 3: Cross multiply
   11,189.13x = 16,780.27 × 3,691.31
4. Step 4: Simplify right side
   11,189.13x = 61,941,165.63
5. Step 5: Solve for x
   x = 61,941,165.63/11,189.13
6. Step 6: Final answer
   x = 5,535.83