Finding the Fourth Proportional to 9,290.61, 12,823.50 and 5,751.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.61 : 12,823.50 = 5,751.81 : x
2. Step 2: Convert to fraction form
   9,290.61/12,823.50 = 5,751.81/x
3. Step 3: Cross multiply
   9,290.61x = 12,823.50 × 5,751.81
4. Step 4: Simplify right side
   9,290.61x = 73,758,335.54
5. Step 5: Solve for x
   x = 73,758,335.54/9,290.61
6. Step 6: Final answer
   x = 7,939.02