Finding the Fourth Proportional to 7,002.06, 10,509.81 and 3,107.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.06 : 10,509.81 = 3,107.82 : x
2. Step 2: Convert to fraction form
   7,002.06/10,509.81 = 3,107.82/x
3. Step 3: Cross multiply
   7,002.06x = 10,509.81 × 3,107.82
4. Step 4: Simplify right side
   7,002.06x = 32,662,597.71
5. Step 5: Solve for x
   x = 32,662,597.71/7,002.06
6. Step 6: Final answer
   x = 4,664.71