Finding the Fourth Proportional to 23,644.76, 32,630.16 and 12,889.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,644.76 : 32,630.16 = 12,889.52 : x
2. Step 2: Convert to fraction form
   23,644.76/32,630.16 = 12,889.52/x
3. Step 3: Cross multiply
   23,644.76x = 32,630.16 × 12,889.52
4. Step 4: Simplify right side
   23,644.76x = 420,586,936.77
5. Step 5: Solve for x
   x = 420,586,936.77/23,644.76
6. Step 6: Final answer
   x = 17,787.75