Finding the Fourth Proportional to 11,910.42, 17,867.04 and 3,145.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,910.42 : 17,867.04 = 3,145.41 : x
2. Step 2: Convert to fraction form
   11,910.42/17,867.04 = 3,145.41/x
3. Step 3: Cross multiply
   11,910.42x = 17,867.04 × 3,145.41
4. Step 4: Simplify right side
   11,910.42x = 56,199,166.29
5. Step 5: Solve for x
   x = 56,199,166.29/11,910.42
6. Step 6: Final answer
   x = 4,718.49