Finding the Fourth Proportional to 105,968, 146,255.28 and 61,256

Step by Step Solution

1. Step 1: Write the proportion equation
   105,968 : 146,255.28 = 61,256 : x
2. Step 2: Convert to fraction form
   105,968/146,255.28 = 61,256/x
3. Step 3: Cross multiply
   105,968x = 146,255.28 × 61,256
4. Step 4: Simplify right side
   105,968x = 8,959,013,431.68
5. Step 5: Solve for x
   x = 8,959,013,431.68/105,968
6. Step 6: Final answer
   x = 84,544.52