Finding the Fourth Proportional to 10,087.29, 13,919.78 and 5,610.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.29 : 13,919.78 = 5,610.71 : x
2. Step 2: Convert to fraction form
   10,087.29/13,919.78 = 5,610.71/x
3. Step 3: Cross multiply
   10,087.29x = 13,919.78 × 5,610.71
4. Step 4: Simplify right side
   10,087.29x = 78,099,897.67
5. Step 5: Solve for x
   x = 78,099,897.67/10,087.29
6. Step 6: Final answer
   x = 7,742.41