Finding the Fourth Proportional to 9,090.72, 12,544.74 and 5,111.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.72 : 12,544.74 = 5,111.73 : x
2. Step 2: Convert to fraction form
   9,090.72/12,544.74 = 5,111.73/x
3. Step 3: Cross multiply
   9,090.72x = 12,544.74 × 5,111.73
4. Step 4: Simplify right side
   9,090.72x = 64,125,323.80
5. Step 5: Solve for x
   x = 64,125,323.80/9,090.72
6. Step 6: Final answer
   x = 7,053.93