Finding the Fourth Proportional to 12,710.98, 19,069.01 and 4,391.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,710.98 : 19,069.01 = 4,391.30 : x
2. Step 2: Convert to fraction form
   12,710.98/19,069.01 = 4,391.30/x
3. Step 3: Cross multiply
   12,710.98x = 19,069.01 × 4,391.30
4. Step 4: Simplify right side
   12,710.98x = 83,737,743.61
5. Step 5: Solve for x
   x = 83,737,743.61/12,710.98
6. Step 6: Final answer
   x = 6,587.83