Finding the Fourth Proportional to 9,090.24, 12,544.27 and 5,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.24 : 12,544.27 = 5,111.25 : x
2. Step 2: Convert to fraction form
   9,090.24/12,544.27 = 5,111.25/x
3. Step 3: Cross multiply
   9,090.24x = 12,544.27 × 5,111.25
4. Step 4: Simplify right side
   9,090.24x = 64,116,900.04
5. Step 5: Solve for x
   x = 64,116,900.04/9,090.24
6. Step 6: Final answer
   x = 7,053.38