Finding the Fourth Proportional to 9,669.52, 14,501.61 and 3,428.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,669.52 : 14,501.61 = 3,428.71 : x
2. Step 2: Convert to fraction form
   9,669.52/14,501.61 = 3,428.71/x
3. Step 3: Cross multiply
   9,669.52x = 14,501.61 × 3,428.71
4. Step 4: Simplify right side
   9,669.52x = 49,721,815.22
5. Step 5: Solve for x
   x = 49,721,815.22/9,669.52
6. Step 6: Final answer
   x = 5,142.12