Finding the Fourth Proportional to 9,865.31, 13,614.54 and 5,673.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,865.31 : 13,614.54 = 5,673.56 : x
2. Step 2: Convert to fraction form
   9,865.31/13,614.54 = 5,673.56/x
3. Step 3: Cross multiply
   9,865.31x = 13,614.54 × 5,673.56
4. Step 4: Simplify right side
   9,865.31x = 77,242,929.41
5. Step 5: Solve for x
   x = 77,242,929.41/9,865.31
6. Step 6: Final answer
   x = 7,829.75