Finding the Fourth Proportional to 5,321.18, 7,336.59 and 3,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,321.18 : 7,336.59 = 3,429.50 : x
2. Step 2: Convert to fraction form
   5,321.18/7,336.59 = 3,429.50/x
3. Step 3: Cross multiply
   5,321.18x = 7,336.59 × 3,429.50
4. Step 4: Simplify right side
   5,321.18x = 25,160,835.41
5. Step 5: Solve for x
   x = 25,160,835.41/5,321.18
6. Step 6: Final answer
   x = 4,728.43