Finding the Fourth Proportional to 9,645.88, 14,468.78 and 3,072.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,645.88 : 14,468.78 = 3,072.60 : x
2. Step 2: Convert to fraction form
   9,645.88/14,468.78 = 3,072.60/x
3. Step 3: Cross multiply
   9,645.88x = 14,468.78 × 3,072.60
4. Step 4: Simplify right side
   9,645.88x = 44,456,773.43
5. Step 5: Solve for x
   x = 44,456,773.43/9,645.88
6. Step 6: Final answer
   x = 4,608.89