Finding the Fourth Proportional to 9,483.16, 13,085.46 and 5,290.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,483.16 : 13,085.46 = 5,290.60 : x
2. Step 2: Convert to fraction form
   9,483.16/13,085.46 = 5,290.60/x
3. Step 3: Cross multiply
   9,483.16x = 13,085.46 × 5,290.60
4. Step 4: Simplify right side
   9,483.16x = 69,229,934.68
5. Step 5: Solve for x
   x = 69,229,934.68/9,483.16
6. Step 6: Final answer
   x = 7,300.30