Finding the Fourth Proportional to 9,065.88, 12,510.86 and 5,086.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,065.88 : 12,510.86 = 5,086.99 : x
2. Step 2: Convert to fraction form
   9,065.88/12,510.86 = 5,086.99/x
3. Step 3: Cross multiply
   9,065.88x = 12,510.86 × 5,086.99
4. Step 4: Simplify right side
   9,065.88x = 63,642,619.71
5. Step 5: Solve for x
   x = 63,642,619.71/9,065.88
6. Step 6: Final answer
   x = 7,020.02