Finding the Fourth Proportional to 25,111.29, 37,665.10 and 11,787.32

Step by Step Solution

1. Step 1: Write the proportion equation
   25,111.29 : 37,665.10 = 11,787.32 : x
2. Step 2: Convert to fraction form
   25,111.29/37,665.10 = 11,787.32/x
3. Step 3: Cross multiply
   25,111.29x = 37,665.10 × 11,787.32
4. Step 4: Simplify right side
   25,111.29x = 443,970,586.53
5. Step 5: Solve for x
   x = 443,970,586.53/25,111.29
6. Step 6: Final answer
   x = 17,680.12