Finding the Fourth Proportional to 81,796.35, 122,760.14 and 42,364.74

Step by Step Solution

1. Step 1: Write the proportion equation
   81,796.35 : 122,760.14 = 42,364.74 : x
2. Step 2: Convert to fraction form
   81,796.35/122,760.14 = 42,364.74/x
3. Step 3: Cross multiply
   81,796.35x = 122,760.14 × 42,364.74
4. Step 4: Simplify right side
   81,796.35x = 5,200,701,413.46
5. Step 5: Solve for x
   x = 5,200,701,413.46/81,796.35
6. Step 6: Final answer
   x = 63,581.09