Finding the Fourth Proportional to 9,086.85, 12,537.99 and 5,106.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.85 : 12,537.99 = 5,106.51 : x
2. Step 2: Convert to fraction form
   9,086.85/12,537.99 = 5,106.51/x
3. Step 3: Cross multiply
   9,086.85x = 12,537.99 × 5,106.51
4. Step 4: Simplify right side
   9,086.85x = 64,025,371.31
5. Step 5: Solve for x
   x = 64,025,371.31/9,086.85
6. Step 6: Final answer
   x = 7,045.94