Finding the Fourth Proportional to 19,142.28, 26,418.72 and 10,758.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,142.28 : 26,418.72 = 10,758.78 : x
2. Step 2: Convert to fraction form
   19,142.28/26,418.72 = 10,758.78/x
3. Step 3: Cross multiply
   19,142.28x = 26,418.72 × 10,758.78
4. Step 4: Simplify right side
   19,142.28x = 284,233,196.36
5. Step 5: Solve for x
   x = 284,233,196.36/19,142.28
6. Step 6: Final answer
   x = 14,848.45