Finding the Fourth Proportional to 81,601.81, 122,304.27 and 42,137.41

Step by Step Solution

1. Step 1: Write the proportion equation
   81,601.81 : 122,304.27 = 42,137.41 : x
2. Step 2: Convert to fraction form
   81,601.81/122,304.27 = 42,137.41/x
3. Step 3: Cross multiply
   81,601.81x = 122,304.27 × 42,137.41
4. Step 4: Simplify right side
   81,601.81x = 5,153,584,558.22
5. Step 5: Solve for x
   x = 5,153,584,558.22/81,601.81
6. Step 6: Final answer
   x = 63,155.28