Finding the Fourth Proportional to 5,190.77, 7,164.17 and 3,066.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,190.77 : 7,164.17 = 3,066.15 : x
2. Step 2: Convert to fraction form
   5,190.77/7,164.17 = 3,066.15/x
3. Step 3: Cross multiply
   5,190.77x = 7,164.17 × 3,066.15
4. Step 4: Simplify right side
   5,190.77x = 21,966,404.51
5. Step 5: Solve for x
   x = 21,966,404.51/5,190.77
6. Step 6: Final answer
   x = 4,231.82