Finding the Fourth Proportional to 8,989.56, 12,405.90 and 5,010.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,989.56 : 12,405.90 = 5,010.52 : x
2. Step 2: Convert to fraction form
   8,989.56/12,405.90 = 5,010.52/x
3. Step 3: Cross multiply
   8,989.56x = 12,405.90 × 5,010.52
4. Step 4: Simplify right side
   8,989.56x = 62,160,010.07
5. Step 5: Solve for x
   x = 62,160,010.07/8,989.56
6. Step 6: Final answer
   x = 6,914.69