Finding the Fourth Proportional to 9,728.34, 14,589.39 and 3,152.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,728.34 : 14,589.39 = 3,152.94 : x
2. Step 2: Convert to fraction form
   9,728.34/14,589.39 = 3,152.94/x
3. Step 3: Cross multiply
   9,728.34x = 14,589.39 × 3,152.94
4. Step 4: Simplify right side
   9,728.34x = 45,999,471.31
5. Step 5: Solve for x
   x = 45,999,471.31/9,728.34
6. Step 6: Final answer
   x = 4,728.40