Finding the Fourth Proportional to 7,166.71, 9,889.59 and 4,182.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,166.71 : 9,889.59 = 4,182.09 : x
2. Step 2: Convert to fraction form
   7,166.71/9,889.59 = 4,182.09/x
3. Step 3: Cross multiply
   7,166.71x = 9,889.59 × 4,182.09
4. Step 4: Simplify right side
   7,166.71x = 41,359,155.44
5. Step 5: Solve for x
   x = 41,359,155.44/7,166.71
6. Step 6: Final answer
   x = 5,771.01