Finding the Fourth Proportional to 105,871.08, 146,113.71 and 60,553.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,871.08 : 146,113.71 = 60,553.20 : x
2. Step 2: Convert to fraction form
   105,871.08/146,113.71 = 60,553.20/x
3. Step 3: Cross multiply
   105,871.08x = 146,113.71 × 60,553.20
4. Step 4: Simplify right side
   105,871.08x = 8,847,652,704.37
5. Step 5: Solve for x
   x = 8,847,652,704.37/105,871.08
6. Step 6: Final answer
   x = 83,570.06