Finding the Fourth Proportional to 12,726.84, 19,086.59 and 4,406.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,726.84 : 19,086.59 = 4,406.52 : x
2. Step 2: Convert to fraction form
   12,726.84/19,086.59 = 4,406.52/x
3. Step 3: Cross multiply
   12,726.84x = 19,086.59 × 4,406.52
4. Step 4: Simplify right side
   12,726.84x = 84,105,418.53
5. Step 5: Solve for x
   x = 84,105,418.53/12,726.84
6. Step 6: Final answer
   x = 6,608.51