Finding the Fourth Proportional to 4,843.72, 6,681.86 and 3,166.11

Step by Step Solution

1. Step 1: Write the proportion equation
   4,843.72 : 6,681.86 = 3,166.11 : x
2. Step 2: Convert to fraction form
   4,843.72/6,681.86 = 3,166.11/x
3. Step 3: Cross multiply
   4,843.72x = 6,681.86 × 3,166.11
4. Step 4: Simplify right side
   4,843.72x = 21,155,499.81
5. Step 5: Solve for x
   x = 21,155,499.81/4,843.72
6. Step 6: Final answer
   x = 4,367.61