Finding the Fourth Proportional to 8,993.34, 12,412.17 and 5,217.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,993.34 : 12,412.17 = 5,217.12 : x
2. Step 2: Convert to fraction form
   8,993.34/12,412.17 = 5,217.12/x
3. Step 3: Cross multiply
   8,993.34x = 12,412.17 × 5,217.12
4. Step 4: Simplify right side
   8,993.34x = 64,755,780.35
5. Step 5: Solve for x
   x = 64,755,780.35/8,993.34
6. Step 6: Final answer
   x = 7,200.42