Finding the Fourth Proportional to 9,290.42, 12,820.74 and 5,098.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.42 : 12,820.74 = 5,098.58 : x
2. Step 2: Convert to fraction form
   9,290.42/12,820.74 = 5,098.58/x
3. Step 3: Cross multiply
   9,290.42x = 12,820.74 × 5,098.58
4. Step 4: Simplify right side
   9,290.42x = 65,367,568.55
5. Step 5: Solve for x
   x = 65,367,568.55/9,290.42
6. Step 6: Final answer
   x = 7,036.02