Finding the Fourth Proportional to 9,269.75, 12,791.55 and 5,290.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.75 : 12,791.55 = 5,290.32 : x
2. Step 2: Convert to fraction form
   9,269.75/12,791.55 = 5,290.32/x
3. Step 3: Cross multiply
   9,269.75x = 12,791.55 × 5,290.32
4. Step 4: Simplify right side
   9,269.75x = 67,671,460.60
5. Step 5: Solve for x
   x = 67,671,460.60/9,269.75
6. Step 6: Final answer
   x = 7,300.24