Finding the Fourth Proportional to 7,002.82, 10,505.40 and 3,107.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.82 : 10,505.40 = 3,107.08 : x
2. Step 2: Convert to fraction form
   7,002.82/10,505.40 = 3,107.08/x
3. Step 3: Cross multiply
   7,002.82x = 10,505.40 × 3,107.08
4. Step 4: Simplify right side
   7,002.82x = 32,641,118.23
5. Step 5: Solve for x
   x = 32,641,118.23/7,002.82
6. Step 6: Final answer
   x = 4,661.14