Finding the Fourth Proportional to 8,989.82, 12,406.02 and 5,011.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,989.82 : 12,406.02 = 5,011.18 : x
2. Step 2: Convert to fraction form
   8,989.82/12,406.02 = 5,011.18/x
3. Step 3: Cross multiply
   8,989.82x = 12,406.02 × 5,011.18
4. Step 4: Simplify right side
   8,989.82x = 62,168,799.30
5. Step 5: Solve for x
   x = 62,168,799.30/8,989.82
6. Step 6: Final answer
   x = 6,915.47