Finding the Fourth Proportional to 8,947.71, 12,342.16 and 5,496.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,947.71 : 12,342.16 = 5,496.78 : x
2. Step 2: Convert to fraction form
   8,947.71/12,342.16 = 5,496.78/x
3. Step 3: Cross multiply
   8,947.71x = 12,342.16 × 5,496.78
4. Step 4: Simplify right side
   8,947.71x = 67,842,151.87
5. Step 5: Solve for x
   x = 67,842,151.87/8,947.71
6. Step 6: Final answer
   x = 7,582.07