Finding the Fourth Proportional to 106,976.72, 147,644.04 and 61,661.42

Step by Step Solution

1. Step 1: Write the proportion equation
   106,976.72 : 147,644.04 = 61,661.42 : x
2. Step 2: Convert to fraction form
   106,976.72/147,644.04 = 61,661.42/x
3. Step 3: Cross multiply
   106,976.72x = 147,644.04 × 61,661.42
4. Step 4: Simplify right side
   106,976.72x = 9,103,941,160.94
5. Step 5: Solve for x
   x = 9,103,941,160.94/106,976.72
6. Step 6: Final answer
   x = 85,102.08