Finding the Fourth Proportional to 10,726.86, 16,089.51 and 3,611.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,726.86 : 16,089.51 = 3,611.15 : x
2. Step 2: Convert to fraction form
   10,726.86/16,089.51 = 3,611.15/x
3. Step 3: Cross multiply
   10,726.86x = 16,089.51 × 3,611.15
4. Step 4: Simplify right side
   10,726.86x = 58,101,553.59
5. Step 5: Solve for x
   x = 58,101,553.59/10,726.86
6. Step 6: Final answer
   x = 5,416.45