Finding the Fourth Proportional to 10,347.27, 14,278.84 and 5,631.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,347.27 : 14,278.84 = 5,631.45 : x
2. Step 2: Convert to fraction form
   10,347.27/14,278.84 = 5,631.45/x
3. Step 3: Cross multiply
   10,347.27x = 14,278.84 × 5,631.45
4. Step 4: Simplify right side
   10,347.27x = 80,410,573.52
5. Step 5: Solve for x
   x = 80,410,573.52/10,347.27
6. Step 6: Final answer
   x = 7,771.19