Finding the Fourth Proportional to 9,270.18, 12,791.61 and 5,291.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.18 : 12,791.61 = 5,291.04 : x
2. Step 2: Convert to fraction form
   9,270.18/12,791.61 = 5,291.04/x
3. Step 3: Cross multiply
   9,270.18x = 12,791.61 × 5,291.04
4. Step 4: Simplify right side
   9,270.18x = 67,680,920.17
5. Step 5: Solve for x
   x = 67,680,920.17/9,270.18
6. Step 6: Final answer
   x = 7,300.93