Finding the Fourth Proportional to 5,607.83, 8,405.37 and 3,411.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607.83 : 8,405.37 = 3,411.72 : x
2. Step 2: Convert to fraction form
   5,607.83/8,405.37 = 3,411.72/x
3. Step 3: Cross multiply
   5,607.83x = 8,405.37 × 3,411.72
4. Step 4: Simplify right side
   5,607.83x = 28,676,768.94
5. Step 5: Solve for x
   x = 28,676,768.94/5,607.83
6. Step 6: Final answer
   x = 5,113.70