Finding the Fourth Proportional to 12,767.57, 19,153.71 and 5,747.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,767.57 : 19,153.71 = 5,747.76 : x
2. Step 2: Convert to fraction form
   12,767.57/19,153.71 = 5,747.76/x
3. Step 3: Cross multiply
   12,767.57x = 19,153.71 × 5,747.76
4. Step 4: Simplify right side
   12,767.57x = 110,090,803.68
5. Step 5: Solve for x
   x = 110,090,803.68/12,767.57
6. Step 6: Final answer
   x = 8,622.69