Finding the Fourth Proportional to 3,591.07, 5,381.99 and 3,498.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.07 : 5,381.99 = 3,498.81 : x
2. Step 2: Convert to fraction form
   3,591.07/5,381.99 = 3,498.81/x
3. Step 3: Cross multiply
   3,591.07x = 5,381.99 × 3,498.81
4. Step 4: Simplify right side
   3,591.07x = 18,830,560.43
5. Step 5: Solve for x
   x = 18,830,560.43/3,591.07
6. Step 6: Final answer
   x = 5,243.72