Finding the Fourth Proportional to 42,344.30, 63,519.42 and 12,762.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,344.30 : 63,519.42 = 12,762.38 : x
2. Step 2: Convert to fraction form
   42,344.30/63,519.42 = 12,762.38/x
3. Step 3: Cross multiply
   42,344.30x = 63,519.42 × 12,762.38
4. Step 4: Simplify right side
   42,344.30x = 810,658,975.42
5. Step 5: Solve for x
   x = 810,658,975.42/42,344.30
6. Step 6: Final answer
   x = 19,144.47