Finding the Fourth Proportional to 12,086.39, 16,679.22 and 7,054.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.39 : 16,679.22 = 7,054.07 : x
2. Step 2: Convert to fraction form
   12,086.39/16,679.22 = 7,054.07/x
3. Step 3: Cross multiply
   12,086.39x = 16,679.22 × 7,054.07
4. Step 4: Simplify right side
   12,086.39x = 117,656,385.43
5. Step 5: Solve for x
   x = 117,656,385.43/12,086.39
6. Step 6: Final answer
   x = 9,734.62