Finding the Fourth Proportional to 10,065.47, 13,890.59 and 5,589

Step by Step Solution

1. Step 1: Write the proportion equation
   10,065.47 : 13,890.59 = 5,589 : x
2. Step 2: Convert to fraction form
   10,065.47/13,890.59 = 5,589/x
3. Step 3: Cross multiply
   10,065.47x = 13,890.59 × 5,589
4. Step 4: Simplify right side
   10,065.47x = 77,634,500.52
5. Step 5: Solve for x
   x = 77,634,500.52/10,065.47
6. Step 6: Final answer
   x = 7,712.96