Finding the Fourth Proportional to 12,907.82, 19,360.58 and 4,022.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,907.82 : 19,360.58 = 4,022.78 : x
2. Step 2: Convert to fraction form
   12,907.82/19,360.58 = 4,022.78/x
3. Step 3: Cross multiply
   12,907.82x = 19,360.58 × 4,022.78
4. Step 4: Simplify right side
   12,907.82x = 77,883,267.27
5. Step 5: Solve for x
   x = 77,883,267.27/12,907.82
6. Step 6: Final answer
   x = 6,033.80