Finding the Fourth Proportional to 116,048.72, 160,146.96 and 65,747.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,048.72 : 160,146.96 = 65,747.72 : x
2. Step 2: Convert to fraction form
   116,048.72/160,146.96 = 65,747.72/x
3. Step 3: Cross multiply
   116,048.72x = 160,146.96 × 65,747.72
4. Step 4: Simplify right side
   116,048.72x = 10,529,297,484.93
5. Step 5: Solve for x
   x = 10,529,297,484.93/116,048.72
6. Step 6: Final answer
   x = 90,731.70