Finding the Fourth Proportional to 9,065.81, 12,510.87 and 5,087

Step by Step Solution

1. Step 1: Write the proportion equation
   9,065.81 : 12,510.87 = 5,087 : x
2. Step 2: Convert to fraction form
   9,065.81/12,510.87 = 5,087/x
3. Step 3: Cross multiply
   9,065.81x = 12,510.87 × 5,087
4. Step 4: Simplify right side
   9,065.81x = 63,642,795.69
5. Step 5: Solve for x
   x = 63,642,795.69/9,065.81
6. Step 6: Final answer
   x = 7,020.09