Finding the Fourth Proportional to 5,166.21, 7,750.71 and 3,687.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,166.21 : 7,750.71 = 3,687.29 : x
2. Step 2: Convert to fraction form
   5,166.21/7,750.71 = 3,687.29/x
3. Step 3: Cross multiply
   5,166.21x = 7,750.71 × 3,687.29
4. Step 4: Simplify right side
   5,166.21x = 28,579,076.72
5. Step 5: Solve for x
   x = 28,579,076.72/5,166.21
6. Step 6: Final answer
   x = 5,531.92