Finding the Fourth Proportional to 67,255.74, 92,730.69 and 42,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,255.74 : 92,730.69 = 42,061.50 : x
2. Step 2: Convert to fraction form
   67,255.74/92,730.69 = 42,061.50/x
3. Step 3: Cross multiply
   67,255.74x = 92,730.69 × 42,061.50
4. Step 4: Simplify right side
   67,255.74x = 3,900,391,917.44
5. Step 5: Solve for x
   x = 3,900,391,917.44/67,255.74
6. Step 6: Final answer
   x = 57,993.44