Finding the Fourth Proportional to 67,519.89, 101,271.44 and 42,221.61

Step by Step Solution

1. Step 1: Write the proportion equation
   67,519.89 : 101,271.44 = 42,221.61 : x
2. Step 2: Convert to fraction form
   67,519.89/101,271.44 = 42,221.61/x
3. Step 3: Cross multiply
   67,519.89x = 101,271.44 × 42,221.61
4. Step 4: Simplify right side
   67,519.89x = 4,275,843,032.71
5. Step 5: Solve for x
   x = 4,275,843,032.71/67,519.89
6. Step 6: Final answer
   x = 63,327.16