Finding the Fourth Proportional to 9,316.98, 12,853.71 and 5,730.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,316.98 : 12,853.71 = 5,730.80 : x
2. Step 2: Convert to fraction form
   9,316.98/12,853.71 = 5,730.80/x
3. Step 3: Cross multiply
   9,316.98x = 12,853.71 × 5,730.80
4. Step 4: Simplify right side
   9,316.98x = 73,661,977.00
5. Step 5: Solve for x
   x = 73,661,977.00/9,316.98
6. Step 6: Final answer
   x = 7,906.21