Finding the Fourth Proportional to 9,939.90, 14,900.57 and 3,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.90 : 14,900.57 = 3,361.50 : x
2. Step 2: Convert to fraction form
   9,939.90/14,900.57 = 3,361.50/x
3. Step 3: Cross multiply
   9,939.90x = 14,900.57 × 3,361.50
4. Step 4: Simplify right side
   9,939.90x = 50,088,311.71
5. Step 5: Solve for x
   x = 50,088,311.71/9,939.90
6. Step 6: Final answer
   x = 5,039.12