Finding the Fourth Proportional to 8,980.22, 12,392.72 and 5,204.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,980.22 : 12,392.72 = 5,204.12 : x
2. Step 2: Convert to fraction form
   8,980.22/12,392.72 = 5,204.12/x
3. Step 3: Cross multiply
   8,980.22x = 12,392.72 × 5,204.12
4. Step 4: Simplify right side
   8,980.22x = 64,493,153.05
5. Step 5: Solve for x
   x = 64,493,153.05/8,980.22
6. Step 6: Final answer
   x = 7,181.69