Finding the Fourth Proportional to 11,874.38, 17,811.08 and 3,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,874.38 : 17,811.08 = 3,109.10 : x
2. Step 2: Convert to fraction form
   11,874.38/17,811.08 = 3,109.10/x
3. Step 3: Cross multiply
   11,874.38x = 17,811.08 × 3,109.10
4. Step 4: Simplify right side
   11,874.38x = 55,376,428.83
5. Step 5: Solve for x
   x = 55,376,428.83/11,874.38
6. Step 6: Final answer
   x = 4,663.52