Finding the Fourth Proportional to 11,591.73, 17,388.96 and 3,691.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,591.73 : 17,388.96 = 3,691.48 : x
2. Step 2: Convert to fraction form
   11,591.73/17,388.96 = 3,691.48/x
3. Step 3: Cross multiply
   11,591.73x = 17,388.96 × 3,691.48
4. Step 4: Simplify right side
   11,591.73x = 64,191,015.18
5. Step 5: Solve for x
   x = 64,191,015.18/11,591.73
6. Step 6: Final answer
   x = 5,537.66