Finding the Fourth Proportional to 12,057.48, 18,093 and 5,042.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.48 : 18,093 = 5,042.64 : x
2. Step 2: Convert to fraction form
   12,057.48/18,093 = 5,042.64/x
3. Step 3: Cross multiply
   12,057.48x = 18,093 × 5,042.64
4. Step 4: Simplify right side
   12,057.48x = 91,236,485.52
5. Step 5: Solve for x
   x = 91,236,485.52/12,057.48
6. Step 6: Final answer
   x = 7,566.80