Finding the Fourth Proportional to 10,605.54, 14,638.29 and 6,131.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,605.54 : 14,638.29 = 6,131.88 : x
2. Step 2: Convert to fraction form
   10,605.54/14,638.29 = 6,131.88/x
3. Step 3: Cross multiply
   10,605.54x = 14,638.29 × 6,131.88
4. Step 4: Simplify right side
   10,605.54x = 89,760,237.69
5. Step 5: Solve for x
   x = 89,760,237.69/10,605.54
6. Step 6: Final answer
   x = 8,463.52