Finding the Fourth Proportional to 10,104.30, 13,944.96 and 5,628.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,104.30 : 13,944.96 = 5,628.78 : x
2. Step 2: Convert to fraction form
   10,104.30/13,944.96 = 5,628.78/x
3. Step 3: Cross multiply
   10,104.30x = 13,944.96 × 5,628.78
4. Step 4: Simplify right side
   10,104.30x = 78,493,111.95
5. Step 5: Solve for x
   x = 78,493,111.95/10,104.30
6. Step 6: Final answer
   x = 7,768.29