Finding the Fourth Proportional to 42,023.92, 63,017.40 and 12,444.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,023.92 : 63,017.40 = 12,444.04 : x
2. Step 2: Convert to fraction form
   42,023.92/63,017.40 = 12,444.04/x
3. Step 3: Cross multiply
   42,023.92x = 63,017.40 × 12,444.04
4. Step 4: Simplify right side
   42,023.92x = 784,191,046.30
5. Step 5: Solve for x
   x = 784,191,046.30/42,023.92
6. Step 6: Final answer
   x = 18,660.59