Finding the Fourth Proportional to 5,922.59, 8,173.15 and 3,405.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,922.59 : 8,173.15 = 3,405.15 : x
2. Step 2: Convert to fraction form
   5,922.59/8,173.15 = 3,405.15/x
3. Step 3: Cross multiply
   5,922.59x = 8,173.15 × 3,405.15
4. Step 4: Simplify right side
   5,922.59x = 27,830,823.86
5. Step 5: Solve for x
   x = 27,830,823.86/5,922.59
6. Step 6: Final answer
   x = 4,699.09