Finding the Fourth Proportional to 12,747.92, 19,130.52 and 4,955.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,747.92 : 19,130.52 = 4,955.72 : x
2. Step 2: Convert to fraction form
   12,747.92/19,130.52 = 4,955.72/x
3. Step 3: Cross multiply
   12,747.92x = 19,130.52 × 4,955.72
4. Step 4: Simplify right side
   12,747.92x = 94,805,500.57
5. Step 5: Solve for x
   x = 94,805,500.57/12,747.92
6. Step 6: Final answer
   x = 7,436.94