Finding the Fourth Proportional to 42,136.52, 63,223.22 and 19,965.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,136.52 : 63,223.22 = 19,965.72 : x
2. Step 2: Convert to fraction form
   42,136.52/63,223.22 = 19,965.72/x
3. Step 3: Cross multiply
   42,136.52x = 63,223.22 × 19,965.72
4. Step 4: Simplify right side
   42,136.52x = 1,262,297,108.02
5. Step 5: Solve for x
   x = 1,262,297,108.02/42,136.52
6. Step 6: Final answer
   x = 29,957.32