Finding the Fourth Proportional to 9,089.81, 12,544.51 and 5,111.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.81 : 12,544.51 = 5,111.18 : x
2. Step 2: Convert to fraction form
   9,089.81/12,544.51 = 5,111.18/x
3. Step 3: Cross multiply
   9,089.81x = 12,544.51 × 5,111.18
4. Step 4: Simplify right side
   9,089.81x = 64,117,248.62
5. Step 5: Solve for x
   x = 64,117,248.62/9,089.81
6. Step 6: Final answer
   x = 7,053.75