Finding the Fourth Proportional to 11,233.55, 16,836.66 and 7,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,233.55 : 16,836.66 = 7,947.59 : x
2. Step 2: Convert to fraction form
   11,233.55/16,836.66 = 7,947.59/x
3. Step 3: Cross multiply
   11,233.55x = 16,836.66 × 7,947.59
4. Step 4: Simplify right side
   11,233.55x = 133,810,870.65
5. Step 5: Solve for x
   x = 133,810,870.65/11,233.55
6. Step 6: Final answer
   x = 11,911.72