Finding the Fourth Proportional to 12,756.78, 19,123.83 and 4,963.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756.78 : 19,123.83 = 4,963.77 : x
2. Step 2: Convert to fraction form
   12,756.78/19,123.83 = 4,963.77/x
3. Step 3: Cross multiply
   12,756.78x = 19,123.83 × 4,963.77
4. Step 4: Simplify right side
   12,756.78x = 94,926,293.64
5. Step 5: Solve for x
   x = 94,926,293.64/12,756.78
6. Step 6: Final answer
   x = 7,441.24