Finding the Fourth Proportional to 6,469.80, 8,931.98 and 4,233.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,469.80 : 8,931.98 = 4,233.98 : x
2. Step 2: Convert to fraction form
   6,469.80/8,931.98 = 4,233.98/x
3. Step 3: Cross multiply
   6,469.80x = 8,931.98 × 4,233.98
4. Step 4: Simplify right side
   6,469.80x = 37,817,824.68
5. Step 5: Solve for x
   x = 37,817,824.68/6,469.80
6. Step 6: Final answer
   x = 5,845.28