Finding the Fourth Proportional to 9,665.52, 14,495.91 and 2,645.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.52 : 14,495.91 = 2,645.55 : x
2. Step 2: Convert to fraction form
   9,665.52/14,495.91 = 2,645.55/x
3. Step 3: Cross multiply
   9,665.52x = 14,495.91 × 2,645.55
4. Step 4: Simplify right side
   9,665.52x = 38,349,654.70
5. Step 5: Solve for x
   x = 38,349,654.70/9,665.52
6. Step 6: Final answer
   x = 3,967.68