Finding the Fourth Proportional to 10,103.71, 13,942.12 and 5,627.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.71 : 13,942.12 = 5,627.87 : x
2. Step 2: Convert to fraction form
   10,103.71/13,942.12 = 5,627.87/x
3. Step 3: Cross multiply
   10,103.71x = 13,942.12 × 5,627.87
4. Step 4: Simplify right side
   10,103.71x = 78,464,459.67
5. Step 5: Solve for x
   x = 78,464,459.67/10,103.71
6. Step 6: Final answer
   x = 7,765.91