Finding the Fourth Proportional to 11,258.72, 15,538.39 and 7,066.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,258.72 : 15,538.39 = 7,066.16 : x
2. Step 2: Convert to fraction form
   11,258.72/15,538.39 = 7,066.16/x
3. Step 3: Cross multiply
   11,258.72x = 15,538.39 × 7,066.16
4. Step 4: Simplify right side
   11,258.72x = 109,796,654.53
5. Step 5: Solve for x
   x = 109,796,654.53/11,258.72
6. Step 6: Final answer
   x = 9,752.15