Finding the Fourth Proportional to 12,087.02, 18,131.40 and 5,059.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.02 : 18,131.40 = 5,059.97 : x
2. Step 2: Convert to fraction form
   12,087.02/18,131.40 = 5,059.97/x
3. Step 3: Cross multiply
   12,087.02x = 18,131.40 × 5,059.97
4. Step 4: Simplify right side
   12,087.02x = 91,744,249.40
5. Step 5: Solve for x
   x = 91,744,249.40/12,087.02
6. Step 6: Final answer
   x = 7,590.31