Finding the Fourth Proportional to 42,209.18, 63,326.46 and 12,627.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,209.18 : 63,326.46 = 12,627.98 : x
2. Step 2: Convert to fraction form
   42,209.18/63,326.46 = 12,627.98/x
3. Step 3: Cross multiply
   42,209.18x = 63,326.46 × 12,627.98
4. Step 4: Simplify right side
   42,209.18x = 799,685,270.35
5. Step 5: Solve for x
   x = 799,685,270.35/42,209.18
6. Step 6: Final answer
   x = 18,945.77