Finding the Fourth Proportional to 12,777.73, 19,151.55 and 5,749.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,777.73 : 19,151.55 = 5,749.48 : x
2. Step 2: Convert to fraction form
   12,777.73/19,151.55 = 5,749.48/x
3. Step 3: Cross multiply
   12,777.73x = 19,151.55 × 5,749.48
4. Step 4: Simplify right side
   12,777.73x = 110,111,453.69
5. Step 5: Solve for x
   x = 110,111,453.69/12,777.73
6. Step 6: Final answer
   x = 8,617.45