Finding the Fourth Proportional to 11,815.05, 17,725.64 and 3,494.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,815.05 : 17,725.64 = 3,494.73 : x
2. Step 2: Convert to fraction form
   11,815.05/17,725.64 = 3,494.73/x
3. Step 3: Cross multiply
   11,815.05x = 17,725.64 × 3,494.73
4. Step 4: Simplify right side
   11,815.05x = 61,946,308.40
5. Step 5: Solve for x
   x = 61,946,308.40/11,815.05
6. Step 6: Final answer
   x = 5,243.00