Finding the Fourth Proportional to 23,787.72, 32,827.86 and 13,178.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,787.72 : 32,827.86 = 13,178.16 : x
2. Step 2: Convert to fraction form
   23,787.72/32,827.86 = 13,178.16/x
3. Step 3: Cross multiply
   23,787.72x = 32,827.86 × 13,178.16
4. Step 4: Simplify right side
   23,787.72x = 432,610,791.54
5. Step 5: Solve for x
   x = 432,610,791.54/23,787.72
6. Step 6: Final answer
   x = 18,186.31