Finding the Fourth Proportional to 42,136.02, 63,222.47 and 19,965.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,136.02 : 63,222.47 = 19,965.22 : x
2. Step 2: Convert to fraction form
   42,136.02/63,222.47 = 19,965.22/x
3. Step 3: Cross multiply
   42,136.02x = 63,222.47 × 19,965.22
4. Step 4: Simplify right side
   42,136.02x = 1,262,250,522.49
5. Step 5: Solve for x
   x = 1,262,250,522.49/42,136.02
6. Step 6: Final answer
   x = 29,956.57