Finding the Fourth Proportional to 8,736.35, 12,064.73 and 7,470.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,736.35 : 12,064.73 = 7,470.09 : x
2. Step 2: Convert to fraction form
   8,736.35/12,064.73 = 7,470.09/x
3. Step 3: Cross multiply
   8,736.35x = 12,064.73 × 7,470.09
4. Step 4: Simplify right side
   8,736.35x = 90,124,581.58
5. Step 5: Solve for x
   x = 90,124,581.58/8,736.35
6. Step 6: Final answer
   x = 10,316.05