Finding the Fourth Proportional to 25,644.72, 38,485.15 and 9,006.05

Step by Step Solution

1. Step 1: Write the proportion equation
   25,644.72 : 38,485.15 = 9,006.05 : x
2. Step 2: Convert to fraction form
   25,644.72/38,485.15 = 9,006.05/x
3. Step 3: Cross multiply
   25,644.72x = 38,485.15 × 9,006.05
4. Step 4: Simplify right side
   25,644.72x = 346,599,185.16
5. Step 5: Solve for x
   x = 346,599,185.16/25,644.72
6. Step 6: Final answer
   x = 13,515.42