Finding the Fourth Proportional to 11,678.38, 17,518.45 and 3,358.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,678.38 : 17,518.45 = 3,358.34 : x
2. Step 2: Convert to fraction form
   11,678.38/17,518.45 = 3,358.34/x
3. Step 3: Cross multiply
   11,678.38x = 17,518.45 × 3,358.34
4. Step 4: Simplify right side
   11,678.38x = 58,832,911.37
5. Step 5: Solve for x
   x = 58,832,911.37/11,678.38
6. Step 6: Final answer
   x = 5,037.76