Finding the Fourth Proportional to 105,960.72, 158,939.27 and 56,030.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,960.72 : 158,939.27 = 56,030.16 : x
2. Step 2: Convert to fraction form
   105,960.72/158,939.27 = 56,030.16/x
3. Step 3: Cross multiply
   105,960.72x = 158,939.27 × 56,030.16
4. Step 4: Simplify right side
   105,960.72x = 8,905,392,728.38
5. Step 5: Solve for x
   x = 8,905,392,728.38/105,960.72
6. Step 6: Final answer
   x = 84,044.28