Finding the Fourth Proportional to 42,210.56, 63,297.84 and 12,627.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,210.56 : 63,297.84 = 12,627.92 : x
2. Step 2: Convert to fraction form
   42,210.56/63,297.84 = 12,627.92/x
3. Step 3: Cross multiply
   42,210.56x = 63,297.84 × 12,627.92
4. Step 4: Simplify right side
   42,210.56x = 799,320,059.69
5. Step 5: Solve for x
   x = 799,320,059.69/42,210.56
6. Step 6: Final answer
   x = 18,936.50