Finding the Fourth Proportional to 10,637.89, 14,681.92 and 6,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,637.89 : 14,681.92 = 6,391.31 : x
2. Step 2: Convert to fraction form
   10,637.89/14,681.92 = 6,391.31/x
3. Step 3: Cross multiply
   10,637.89x = 14,681.92 × 6,391.31
4. Step 4: Simplify right side
   10,637.89x = 93,836,702.12
5. Step 5: Solve for x
   x = 93,836,702.12/10,637.89
6. Step 6: Final answer
   x = 8,820.99