Finding the Fourth Proportional to 116,054.64, 160,168.59 and 65,081.07

Step by Step Solution

1. Step 1: Write the proportion equation
   116,054.64 : 160,168.59 = 65,081.07 : x
2. Step 2: Convert to fraction form
   116,054.64/160,168.59 = 65,081.07/x
3. Step 3: Cross multiply
   116,054.64x = 160,168.59 × 65,081.07
4. Step 4: Simplify right side
   116,054.64x = 10,423,943,217.59
5. Step 5: Solve for x
   x = 10,423,943,217.59/116,054.64
6. Step 6: Final answer
   x = 89,819.27