Finding the Fourth Proportional to 9,065.49, 12,510.57 and 5,086.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,065.49 : 12,510.57 = 5,086.89 : x
2. Step 2: Convert to fraction form
   9,065.49/12,510.57 = 5,086.89/x
3. Step 3: Cross multiply
   9,065.49x = 12,510.57 × 5,086.89
4. Step 4: Simplify right side
   9,065.49x = 63,639,893.43
5. Step 5: Solve for x
   x = 63,639,893.43/9,065.49
6. Step 6: Final answer
   x = 7,020.02