Finding the Fourth Proportional to 9,483.40, 13,085.22 and 5,290.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,483.40 : 13,085.22 = 5,290.84 : x
2. Step 2: Convert to fraction form
   9,483.40/13,085.22 = 5,290.84/x
3. Step 3: Cross multiply
   9,483.40x = 13,085.22 × 5,290.84
4. Step 4: Simplify right side
   9,483.40x = 69,231,805.38
5. Step 5: Solve for x
   x = 69,231,805.38/9,483.40
6. Step 6: Final answer
   x = 7,300.31