Finding the Fourth Proportional to 12,393.42, 17,097.54 and 7,086.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,393.42 : 17,097.54 = 7,086.30 : x
2. Step 2: Convert to fraction form
   12,393.42/17,097.54 = 7,086.30/x
3. Step 3: Cross multiply
   12,393.42x = 17,097.54 × 7,086.30
4. Step 4: Simplify right side
   12,393.42x = 121,158,297.70
5. Step 5: Solve for x
   x = 121,158,297.70/12,393.42
6. Step 6: Final answer
   x = 9,776.02