Finding the Fourth Proportional to 10,087.59, 13,919.27 and 5,611.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.59 : 13,919.27 = 5,611.33 : x
2. Step 2: Convert to fraction form
   10,087.59/13,919.27 = 5,611.33/x
3. Step 3: Cross multiply
   10,087.59x = 13,919.27 × 5,611.33
4. Step 4: Simplify right side
   10,087.59x = 78,105,617.33
5. Step 5: Solve for x
   x = 78,105,617.33/10,087.59
6. Step 6: Final answer
   x = 7,742.74