Finding the Fourth Proportional to 42,483.48, 63,721.10 and 12,901.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,483.48 : 63,721.10 = 12,901.56 : x
2. Step 2: Convert to fraction form
   42,483.48/63,721.10 = 12,901.56/x
3. Step 3: Cross multiply
   42,483.48x = 63,721.10 × 12,901.56
4. Step 4: Simplify right side
   42,483.48x = 822,101,594.92
5. Step 5: Solve for x
   x = 822,101,594.92/42,483.48
6. Step 6: Final answer
   x = 19,351.09