Finding the Fourth Proportional to 42,357.72, 63,542.45 and 14,285.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,357.72 : 63,542.45 = 14,285.82 : x
2. Step 2: Convert to fraction form
   42,357.72/63,542.45 = 14,285.82/x
3. Step 3: Cross multiply
   42,357.72x = 63,542.45 × 14,285.82
4. Step 4: Simplify right side
   42,357.72x = 907,756,003.06
5. Step 5: Solve for x
   x = 907,756,003.06/42,357.72
6. Step 6: Final answer
   x = 21,430.71