Finding the Fourth Proportional to 9,246.18, 12,759.96 and 5,661.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,246.18 : 12,759.96 = 5,661.72 : x
2. Step 2: Convert to fraction form
   9,246.18/12,759.96 = 5,661.72/x
3. Step 3: Cross multiply
   9,246.18x = 12,759.96 × 5,661.72
4. Step 4: Simplify right side
   9,246.18x = 72,243,320.73
5. Step 5: Solve for x
   x = 72,243,320.73/9,246.18
6. Step 6: Final answer
   x = 7,813.32