Finding the Fourth Proportional to 8,947.68, 12,345.81 and 5,410.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,947.68 : 12,345.81 = 5,410.82 : x
2. Step 2: Convert to fraction form
   8,947.68/12,345.81 = 5,410.82/x
3. Step 3: Cross multiply
   8,947.68x = 12,345.81 × 5,410.82
4. Step 4: Simplify right side
   8,947.68x = 66,800,893.94
5. Step 5: Solve for x
   x = 66,800,893.94/8,947.68
6. Step 6: Final answer
   x = 7,465.72