Finding the Fourth Proportional to 9,606.72, 14,389.20 and 4,665.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,606.72 : 14,389.20 = 4,665.96 : x
2. Step 2: Convert to fraction form
   9,606.72/14,389.20 = 4,665.96/x
3. Step 3: Cross multiply
   9,606.72x = 14,389.20 × 4,665.96
4. Step 4: Simplify right side
   9,606.72x = 67,139,431.63
5. Step 5: Solve for x
   x = 67,139,431.63/9,606.72
6. Step 6: Final answer
   x = 6,988.80