Finding the Fourth Proportional to 9,622.72, 14,428.56 and 2,957.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.72 : 14,428.56 = 2,957.48 : x
2. Step 2: Convert to fraction form
   9,622.72/14,428.56 = 2,957.48/x
3. Step 3: Cross multiply
   9,622.72x = 14,428.56 × 2,957.48
4. Step 4: Simplify right side
   9,622.72x = 42,672,164.45
5. Step 5: Solve for x
   x = 42,672,164.45/9,622.72
6. Step 6: Final answer
   x = 4,434.52