Finding the Fourth Proportional to 11,917.48, 17,878.38 and 3,597.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,917.48 : 17,878.38 = 3,597.16 : x
2. Step 2: Convert to fraction form
   11,917.48/17,878.38 = 3,597.16/x
3. Step 3: Cross multiply
   11,917.48x = 17,878.38 × 3,597.16
4. Step 4: Simplify right side
   11,917.48x = 64,311,393.40
5. Step 5: Solve for x
   x = 64,311,393.40/11,917.48
6. Step 6: Final answer
   x = 5,396.39