Finding the Fourth Proportional to 11,814.91, 17,725.40 and 3,494.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,814.91 : 17,725.40 = 3,494.59 : x
2. Step 2: Convert to fraction form
   11,814.91/17,725.40 = 3,494.59/x
3. Step 3: Cross multiply
   11,814.91x = 17,725.40 × 3,494.59
4. Step 4: Simplify right side
   11,814.91x = 61,943,005.59
5. Step 5: Solve for x
   x = 61,943,005.59/11,814.91
6. Step 6: Final answer
   x = 5,242.78