Finding the Fourth Proportional to 10,065.48, 13,889.82 and 5,589.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,065.48 : 13,889.82 = 5,589.19 : x
2. Step 2: Convert to fraction form
   10,065.48/13,889.82 = 5,589.19/x
3. Step 3: Cross multiply
   10,065.48x = 13,889.82 × 5,589.19
4. Step 4: Simplify right side
   10,065.48x = 77,632,843.05
5. Step 5: Solve for x
   x = 77,632,843.05/10,065.48
6. Step 6: Final answer
   x = 7,712.78