Finding the Fourth Proportional to 9,976.51, 14,959.36 and 3,648.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.51 : 14,959.36 = 3,648.79 : x
2. Step 2: Convert to fraction form
   9,976.51/14,959.36 = 3,648.79/x
3. Step 3: Cross multiply
   9,976.51x = 14,959.36 × 3,648.79
4. Step 4: Simplify right side
   9,976.51x = 54,583,563.17
5. Step 5: Solve for x
   x = 54,583,563.17/9,976.51
6. Step 6: Final answer
   x = 5,471.21