Finding the Fourth Proportional to 11,720.18, 17,614.83 and 7,847.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,720.18 : 17,614.83 = 7,847.54 : x
2. Step 2: Convert to fraction form
   11,720.18/17,614.83 = 7,847.54/x
3. Step 3: Cross multiply
   11,720.18x = 17,614.83 × 7,847.54
4. Step 4: Simplify right side
   11,720.18x = 138,233,083.02
5. Step 5: Solve for x
   x = 138,233,083.02/11,720.18
6. Step 6: Final answer
   x = 11,794.45