Finding the Fourth Proportional to 7,106.59, 9,807.17 and 3,920.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,106.59 : 9,807.17 = 3,920.02 : x
2. Step 2: Convert to fraction form
   7,106.59/9,807.17 = 3,920.02/x
3. Step 3: Cross multiply
   7,106.59x = 9,807.17 × 3,920.02
4. Step 4: Simplify right side
   7,106.59x = 38,444,313.59
5. Step 5: Solve for x
   x = 38,444,313.59/7,106.59
6. Step 6: Final answer
   x = 5,409.67