Finding the Fourth Proportional to 4,909.50, 7,373.69 and 4,208.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,909.50 : 7,373.69 = 4,208.30 : x
2. Step 2: Convert to fraction form
   4,909.50/7,373.69 = 4,208.30/x
3. Step 3: Cross multiply
   4,909.50x = 7,373.69 × 4,208.30
4. Step 4: Simplify right side
   4,909.50x = 31,030,641.72
5. Step 5: Solve for x
   x = 31,030,641.72/4,909.50
6. Step 6: Final answer
   x = 6,320.53