Finding the Fourth Proportional to 25,111.84, 37,644.72 and 11,253.28

Step by Step Solution

1. Step 1: Write the proportion equation
   25,111.84 : 37,644.72 = 11,253.28 : x
2. Step 2: Convert to fraction form
   25,111.84/37,644.72 = 11,253.28/x
3. Step 3: Cross multiply
   25,111.84x = 37,644.72 × 11,253.28
4. Step 4: Simplify right side
   25,111.84x = 423,626,574.68
5. Step 5: Solve for x
   x = 423,626,574.68/25,111.84
6. Step 6: Final answer
   x = 16,869.60