Finding the Fourth Proportional to 12,758.78, 19,141.80 and 4,969.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,758.78 : 19,141.80 = 4,969.82 : x
2. Step 2: Convert to fraction form
   12,758.78/19,141.80 = 4,969.82/x
3. Step 3: Cross multiply
   12,758.78x = 19,141.80 × 4,969.82
4. Step 4: Simplify right side
   12,758.78x = 95,131,300.48
5. Step 5: Solve for x
   x = 95,131,300.48/12,758.78
6. Step 6: Final answer
   x = 7,456.14