Finding the Fourth Proportional to 8,981.39, 12,394.56 and 5,204.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.39 : 12,394.56 = 5,204.72 : x
2. Step 2: Convert to fraction form
   8,981.39/12,394.56 = 5,204.72/x
3. Step 3: Cross multiply
   8,981.39x = 12,394.56 × 5,204.72
4. Step 4: Simplify right side
   8,981.39x = 64,510,214.32
5. Step 5: Solve for x
   x = 64,510,214.32/8,981.39
6. Step 6: Final answer
   x = 7,182.65