Finding the Fourth Proportional to 5,925.21, 8,177.55 and 3,689.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,925.21 : 8,177.55 = 3,689.34 : x
2. Step 2: Convert to fraction form
   5,925.21/8,177.55 = 3,689.34/x
3. Step 3: Cross multiply
   5,925.21x = 8,177.55 × 3,689.34
4. Step 4: Simplify right side
   5,925.21x = 30,169,762.32
5. Step 5: Solve for x
   x = 30,169,762.32/5,925.21
6. Step 6: Final answer
   x = 5,091.76