Finding the Fourth Proportional to 5,385.50, 8,067.72 and 3,530.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,385.50 : 8,067.72 = 3,530.96 : x
2. Step 2: Convert to fraction form
   5,385.50/8,067.72 = 3,530.96/x
3. Step 3: Cross multiply
   5,385.50x = 8,067.72 × 3,530.96
4. Step 4: Simplify right side
   5,385.50x = 28,486,796.61
5. Step 5: Solve for x
   x = 28,486,796.61/5,385.50
6. Step 6: Final answer
   x = 5,289.54