Finding the Fourth Proportional to 9,269.43, 12,792.70 and 5,290.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.43 : 12,792.70 = 5,290.84 : x
2. Step 2: Convert to fraction form
   9,269.43/12,792.70 = 5,290.84/x
3. Step 3: Cross multiply
   9,269.43x = 12,792.70 × 5,290.84
4. Step 4: Simplify right side
   9,269.43x = 67,684,128.87
5. Step 5: Solve for x
   x = 67,684,128.87/9,269.43
6. Step 6: Final answer
   x = 7,301.87