Finding the Fourth Proportional to 11,791.81, 16,285.35 and 7,326.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,791.81 : 16,285.35 = 7,326.15 : x
2. Step 2: Convert to fraction form
   11,791.81/16,285.35 = 7,326.15/x
3. Step 3: Cross multiply
   11,791.81x = 16,285.35 × 7,326.15
4. Step 4: Simplify right side
   11,791.81x = 119,308,916.90
5. Step 5: Solve for x
   x = 119,308,916.90/11,791.81
6. Step 6: Final answer
   x = 10,117.95