Finding the Fourth Proportional to 9,066.88, 12,507.20 and 5,530.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.88 : 12,507.20 = 5,530.88 : x
2. Step 2: Convert to fraction form
   9,066.88/12,507.20 = 5,530.88/x
3. Step 3: Cross multiply
   9,066.88x = 12,507.20 × 5,530.88
4. Step 4: Simplify right side
   9,066.88x = 69,175,822.34
5. Step 5: Solve for x
   x = 69,175,822.34/9,066.88
6. Step 6: Final answer
   x = 7,629.51