Finding the Fourth Proportional to 5,904.83, 8,140.50 and 4,223.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,904.83 : 8,140.50 = 4,223.31 : x
2. Step 2: Convert to fraction form
   5,904.83/8,140.50 = 4,223.31/x
3. Step 3: Cross multiply
   5,904.83x = 8,140.50 × 4,223.31
4. Step 4: Simplify right side
   5,904.83x = 34,379,824.53
5. Step 5: Solve for x
   x = 34,379,824.53/5,904.83
6. Step 6: Final answer
   x = 5,822.32