Finding the Fourth Proportional to 12,698.18, 19,048.52 and 4,377.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,698.18 : 19,048.52 = 4,377.10 : x
2. Step 2: Convert to fraction form
   12,698.18/19,048.52 = 4,377.10/x
3. Step 3: Cross multiply
   12,698.18x = 19,048.52 × 4,377.10
4. Step 4: Simplify right side
   12,698.18x = 83,377,197.73
5. Step 5: Solve for x
   x = 83,377,197.73/12,698.18
6. Step 6: Final answer
   x = 6,566.08