Finding the Fourth Proportional to 116,139.56, 160,284.84 and 68,391.89

Step by Step Solution

1. Step 1: Write the proportion equation
   116,139.56 : 160,284.84 = 68,391.89 : x
2. Step 2: Convert to fraction form
   116,139.56/160,284.84 = 68,391.89/x
3. Step 3: Cross multiply
   116,139.56x = 160,284.84 × 68,391.89
4. Step 4: Simplify right side
   116,139.56x = 10,962,183,145.95
5. Step 5: Solve for x
   x = 10,962,183,145.95/116,139.56
6. Step 6: Final answer
   x = 94,388.02