Finding the Fourth Proportional to 7,007.79, 9,670.83 and 3,864.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,007.79 : 9,670.83 = 3,864.09 : x
2. Step 2: Convert to fraction form
   7,007.79/9,670.83 = 3,864.09/x
3. Step 3: Cross multiply
   7,007.79x = 9,670.83 × 3,864.09
4. Step 4: Simplify right side
   7,007.79x = 37,368,938.17
5. Step 5: Solve for x
   x = 37,368,938.17/7,007.79
6. Step 6: Final answer
   x = 5,332.49