Finding the Fourth Proportional to 8,989.10, 12,405.02 and 5,010.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,989.10 : 12,405.02 = 5,010.47 : x
2. Step 2: Convert to fraction form
   8,989.10/12,405.02 = 5,010.47/x
3. Step 3: Cross multiply
   8,989.10x = 12,405.02 × 5,010.47
4. Step 4: Simplify right side
   8,989.10x = 62,155,019.33
5. Step 5: Solve for x
   x = 62,155,019.33/8,989.10
6. Step 6: Final answer
   x = 6,914.49