Finding the Fourth Proportional to 111,786.91, 167,680.33 and 65,006.98

Step by Step Solution

1. Step 1: Write the proportion equation
   111,786.91 : 167,680.33 = 65,006.98 : x
2. Step 2: Convert to fraction form
   111,786.91/167,680.33 = 65,006.98/x
3. Step 3: Cross multiply
   111,786.91x = 167,680.33 × 65,006.98
4. Step 4: Simplify right side
   111,786.91x = 10,900,391,858.70
5. Step 5: Solve for x
   x = 10,900,391,858.70/111,786.91
6. Step 6: Final answer
   x = 97,510.45