Finding the Fourth Proportional to 9,066.98, 12,510.30 and 5,287.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.98 : 12,510.30 = 5,287.88 : x
2. Step 2: Convert to fraction form
   9,066.98/12,510.30 = 5,287.88/x
3. Step 3: Cross multiply
   9,066.98x = 12,510.30 × 5,287.88
4. Step 4: Simplify right side
   9,066.98x = 66,152,965.16
5. Step 5: Solve for x
   x = 66,152,965.16/9,066.98
6. Step 6: Final answer
   x = 7,296.03