Finding the Fourth Proportional to 6,621.29, 9,931.78 and 3,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,621.29 : 9,931.78 = 3,333.50 : x
2. Step 2: Convert to fraction form
   6,621.29/9,931.78 = 3,333.50/x
3. Step 3: Cross multiply
   6,621.29x = 9,931.78 × 3,333.50
4. Step 4: Simplify right side
   6,621.29x = 33,107,522.30
5. Step 5: Solve for x
   x = 33,107,522.30/6,621.29
6. Step 6: Final answer
   x = 5,000.17