Finding the Fourth Proportional to 6,479.39, 8,933.39 and 4,237.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,479.39 : 8,933.39 = 4,237.72 : x
2. Step 2: Convert to fraction form
   6,479.39/8,933.39 = 4,237.72/x
3. Step 3: Cross multiply
   6,479.39x = 8,933.39 × 4,237.72
4. Step 4: Simplify right side
   6,479.39x = 37,857,172.54
5. Step 5: Solve for x
   x = 37,857,172.54/6,479.39
6. Step 6: Final answer
   x = 5,842.70