Finding the Fourth Proportional to 11,918.39, 17,870.61 and 3,595.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,918.39 : 17,870.61 = 3,595.91 : x
2. Step 2: Convert to fraction form
   11,918.39/17,870.61 = 3,595.91/x
3. Step 3: Cross multiply
   11,918.39x = 17,870.61 × 3,595.91
4. Step 4: Simplify right side
   11,918.39x = 64,261,015.85
5. Step 5: Solve for x
   x = 64,261,015.85/11,918.39
6. Step 6: Final answer
   x = 5,391.76