Finding the Fourth Proportional to 8,736.85, 12,065.42 and 7,470.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,736.85 : 12,065.42 = 7,470.59 : x
2. Step 2: Convert to fraction form
   8,736.85/12,065.42 = 7,470.59/x
3. Step 3: Cross multiply
   8,736.85x = 12,065.42 × 7,470.59
4. Step 4: Simplify right side
   8,736.85x = 90,135,768.64
5. Step 5: Solve for x
   x = 90,135,768.64/8,736.85
6. Step 6: Final answer
   x = 10,316.74