Finding the Fourth Proportional to 10,799.16, 16,177.14 and 4,947.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,799.16 : 16,177.14 = 4,947.72 : x
2. Step 2: Convert to fraction form
   10,799.16/16,177.14 = 4,947.72/x
3. Step 3: Cross multiply
   10,799.16x = 16,177.14 × 4,947.72
4. Step 4: Simplify right side
   10,799.16x = 80,039,959.12
5. Step 5: Solve for x
   x = 80,039,959.12/10,799.16
6. Step 6: Final answer
   x = 7,411.68