Finding the Fourth Proportional to 10,047, 13,864.88 and 5,631

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047 : 13,864.88 = 5,631 : x
2. Step 2: Convert to fraction form
   10,047/13,864.88 = 5,631/x
3. Step 3: Cross multiply
   10,047x = 13,864.88 × 5,631
4. Step 4: Simplify right side
   10,047x = 78,073,139.28
5. Step 5: Solve for x
   x = 78,073,139.28/10,047
6. Step 6: Final answer
   x = 7,770.79