Finding the Fourth Proportional to 92,833.49, 139,227.84 and 42,865.55

Step by Step Solution

1. Step 1: Write the proportion equation
   92,833.49 : 139,227.84 = 42,865.55 : x
2. Step 2: Convert to fraction form
   92,833.49/139,227.84 = 42,865.55/x
3. Step 3: Cross multiply
   92,833.49x = 139,227.84 × 42,865.55
4. Step 4: Simplify right side
   92,833.49x = 5,968,078,425.47
5. Step 5: Solve for x
   x = 5,968,078,425.47/92,833.49
6. Step 6: Final answer
   x = 64,287.99