Finding the Fourth Proportional to 42,216.82, 63,328.23 and 12,632.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,216.82 : 63,328.23 = 12,632.26 : x
2. Step 2: Convert to fraction form
   42,216.82/63,328.23 = 12,632.26/x
3. Step 3: Cross multiply
   42,216.82x = 63,328.23 × 12,632.26
4. Step 4: Simplify right side
   42,216.82x = 799,978,666.70
5. Step 5: Solve for x
   x = 799,978,666.70/42,216.82
6. Step 6: Final answer
   x = 18,949.29