Finding the Fourth Proportional to 42,007.34, 63,024.38 and 12,425.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,007.34 : 63,024.38 = 12,425.34 : x
2. Step 2: Convert to fraction form
   42,007.34/63,024.38 = 12,425.34/x
3. Step 3: Cross multiply
   42,007.34x = 63,024.38 × 12,425.34
4. Step 4: Simplify right side
   42,007.34x = 783,099,349.79
5. Step 5: Solve for x
   x = 783,099,349.79/42,007.34
6. Step 6: Final answer
   x = 18,641.96