Finding the Fourth Proportional to 10,105.80, 13,947.03 and 5,630.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.80 : 13,947.03 = 5,630.28 : x
2. Step 2: Convert to fraction form
   10,105.80/13,947.03 = 5,630.28/x
3. Step 3: Cross multiply
   10,105.80x = 13,947.03 × 5,630.28
4. Step 4: Simplify right side
   10,105.80x = 78,525,684.07
5. Step 5: Solve for x
   x = 78,525,684.07/10,105.80
6. Step 6: Final answer
   x = 7,770.36