Finding the Fourth Proportional to 9,995.10, 14,976.30 and 3,417.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,995.10 : 14,976.30 = 3,417.72 : x
2. Step 2: Convert to fraction form
   9,995.10/14,976.30 = 3,417.72/x
3. Step 3: Cross multiply
   9,995.10x = 14,976.30 × 3,417.72
4. Step 4: Simplify right side
   9,995.10x = 51,184,800.04
5. Step 5: Solve for x
   x = 51,184,800.04/9,995.10
6. Step 6: Final answer
   x = 5,120.99