Finding the Fourth Proportional to 10,891.22, 16,335.29 and 3,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.22 : 16,335.29 = 3,494.72 : x
2. Step 2: Convert to fraction form
   10,891.22/16,335.29 = 3,494.72/x
3. Step 3: Cross multiply
   10,891.22x = 16,335.29 × 3,494.72
4. Step 4: Simplify right side
   10,891.22x = 57,087,264.67
5. Step 5: Solve for x
   x = 57,087,264.67/10,891.22
6. Step 6: Final answer
   x = 5,241.59