Finding the Fourth Proportional to 9,983.30, 14,976.32 and 3,407.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.30 : 14,976.32 = 3,407.72 : x
2. Step 2: Convert to fraction form
   9,983.30/14,976.32 = 3,407.72/x
3. Step 3: Cross multiply
   9,983.30x = 14,976.32 × 3,407.72
4. Step 4: Simplify right side
   9,983.30x = 51,035,105.19
5. Step 5: Solve for x
   x = 51,035,105.19/9,983.30
6. Step 6: Final answer
   x = 5,112.05