Finding the Fourth Proportional to 9,835.20, 14,752.50 and 2,439.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,835.20 : 14,752.50 = 2,439.72 : x
2. Step 2: Convert to fraction form
   9,835.20/14,752.50 = 2,439.72/x
3. Step 3: Cross multiply
   9,835.20x = 14,752.50 × 2,439.72
4. Step 4: Simplify right side
   9,835.20x = 35,991,969.30
5. Step 5: Solve for x
   x = 35,991,969.30/9,835.20
6. Step 6: Final answer
   x = 3,659.51