Finding the Fourth Proportional to 11,726.58, 17,590.79 and 3,406.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726.58 : 17,590.79 = 3,406.74 : x
2. Step 2: Convert to fraction form
   11,726.58/17,590.79 = 3,406.74/x
3. Step 3: Cross multiply
   11,726.58x = 17,590.79 × 3,406.74
4. Step 4: Simplify right side
   11,726.58x = 59,927,142.94
5. Step 5: Solve for x
   x = 59,927,142.94/11,726.58
6. Step 6: Final answer
   x = 5,110.37