Finding the Fourth Proportional to 116,310.13, 160,568.93 and 78,269.69

Step by Step Solution

1. Step 1: Write the proportion equation
   116,310.13 : 160,568.93 = 78,269.69 : x
2. Step 2: Convert to fraction form
   116,310.13/160,568.93 = 78,269.69/x
3. Step 3: Cross multiply
   116,310.13x = 160,568.93 × 78,269.69
4. Step 4: Simplify right side
   116,310.13x = 12,567,680,971.83
5. Step 5: Solve for x
   x = 12,567,680,971.83/116,310.13
6. Step 6: Final answer
   x = 108,053.20