Finding the Fourth Proportional to 42,543.27, 63,824.43 and 12,963.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,543.27 : 63,824.43 = 12,963.42 : x
2. Step 2: Convert to fraction form
   42,543.27/63,824.43 = 12,963.42/x
3. Step 3: Cross multiply
   42,543.27x = 63,824.43 × 12,963.42
4. Step 4: Simplify right side
   42,543.27x = 827,382,892.35
5. Step 5: Solve for x
   x = 827,382,892.35/42,543.27
6. Step 6: Final answer
   x = 19,448.03