Finding the Fourth Proportional to 23,248.72, 32,083.05 and 12,638.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,248.72 : 32,083.05 = 12,638.08 : x
2. Step 2: Convert to fraction form
   23,248.72/32,083.05 = 12,638.08/x
3. Step 3: Cross multiply
   23,248.72x = 32,083.05 × 12,638.08
4. Step 4: Simplify right side
   23,248.72x = 405,468,152.54
5. Step 5: Solve for x
   x = 405,468,152.54/23,248.72
6. Step 6: Final answer
   x = 17,440.45