Finding the Fourth Proportional to 11,718.90, 17,575.59 and 3,396.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,718.90 : 17,575.59 = 3,396.72 : x
2. Step 2: Convert to fraction form
   11,718.90/17,575.59 = 3,396.72/x
3. Step 3: Cross multiply
   11,718.90x = 17,575.59 × 3,396.72
4. Step 4: Simplify right side
   11,718.90x = 59,699,358.06
5. Step 5: Solve for x
   x = 59,699,358.06/11,718.90
6. Step 6: Final answer
   x = 5,094.28