Finding the Fourth Proportional to 9,089.64, 12,544.56 and 5,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.64 : 12,544.56 = 5,111.10 : x
2. Step 2: Convert to fraction form
   9,089.64/12,544.56 = 5,111.10/x
3. Step 3: Cross multiply
   9,089.64x = 12,544.56 × 5,111.10
4. Step 4: Simplify right side
   9,089.64x = 64,116,500.62
5. Step 5: Solve for x
   x = 64,116,500.62/9,089.64
6. Step 6: Final answer
   x = 7,053.80