Finding the Fourth Proportional to 10,947.11, 15,091.27 and 7,797.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,947.11 : 15,091.27 = 7,797.83 : x
2. Step 2: Convert to fraction form
   10,947.11/15,091.27 = 7,797.83/x
3. Step 3: Cross multiply
   10,947.11x = 15,091.27 × 7,797.83
4. Step 4: Simplify right side
   10,947.11x = 117,679,174.59
5. Step 5: Solve for x
   x = 117,679,174.59/10,947.11
6. Step 6: Final answer
   x = 10,749.79