Finding the Fourth Proportional to 10,108.30, 13,947.60 and 5,631.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,108.30 : 13,947.60 = 5,631.94 : x
2. Step 2: Convert to fraction form
   10,108.30/13,947.60 = 5,631.94/x
3. Step 3: Cross multiply
   10,108.30x = 13,947.60 × 5,631.94
4. Step 4: Simplify right side
   10,108.30x = 78,552,046.34
5. Step 5: Solve for x
   x = 78,552,046.34/10,108.30
6. Step 6: Final answer
   x = 7,771.04