Finding the Fourth Proportional to 5,923.61, 8,174.42 and 3,904.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,923.61 : 8,174.42 = 3,904.55 : x
2. Step 2: Convert to fraction form
   5,923.61/8,174.42 = 3,904.55/x
3. Step 3: Cross multiply
   5,923.61x = 8,174.42 × 3,904.55
4. Step 4: Simplify right side
   5,923.61x = 31,917,400.50
5. Step 5: Solve for x
   x = 31,917,400.50/5,923.61
6. Step 6: Final answer
   x = 5,388.17