Finding the Fourth Proportional to 9,065.40, 12,510.06 and 5,087.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,065.40 : 12,510.06 = 5,087.48 : x
2. Step 2: Convert to fraction form
   9,065.40/12,510.06 = 5,087.48/x
3. Step 3: Cross multiply
   9,065.40x = 12,510.06 × 5,087.48
4. Step 4: Simplify right side
   9,065.40x = 63,644,680.05
5. Step 5: Solve for x
   x = 63,644,680.05/9,065.40
6. Step 6: Final answer
   x = 7,020.61