Finding the Fourth Proportional to 9,066.80, 12,510.99 and 5,087.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.80 : 12,510.99 = 5,087.88 : x
2. Step 2: Convert to fraction form
   9,066.80/12,510.99 = 5,087.88/x
3. Step 3: Cross multiply
   9,066.80x = 12,510.99 × 5,087.88
4. Step 4: Simplify right side
   9,066.80x = 63,654,415.80
5. Step 5: Solve for x
   x = 63,654,415.80/9,066.80
6. Step 6: Final answer
   x = 7,020.60