Finding the Fourth Proportional to 10,103.90, 13,943.34 and 5,627.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.90 : 13,943.34 = 5,627.70 : x
2. Step 2: Convert to fraction form
   10,103.90/13,943.34 = 5,627.70/x
3. Step 3: Cross multiply
   10,103.90x = 13,943.34 × 5,627.70
4. Step 4: Simplify right side
   10,103.90x = 78,468,934.52
5. Step 5: Solve for x
   x = 78,468,934.52/10,103.90
6. Step 6: Final answer
   x = 7,766.21