Finding the Fourth Proportional to 10,065.67, 13,889.14 and 5,589.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,065.67 : 13,889.14 = 5,589.46 : x
2. Step 2: Convert to fraction form
   10,065.67/13,889.14 = 5,589.46/x
3. Step 3: Cross multiply
   10,065.67x = 13,889.14 × 5,589.46
4. Step 4: Simplify right side
   10,065.67x = 77,632,792.46
5. Step 5: Solve for x
   x = 77,632,792.46/10,065.67
6. Step 6: Final answer
   x = 7,712.63