Finding the Fourth Proportional to 116,308.76, 160,514.19 and 78,132.06

Step by Step Solution

1. Step 1: Write the proportion equation
   116,308.76 : 160,514.19 = 78,132.06 : x
2. Step 2: Convert to fraction form
   116,308.76/160,514.19 = 78,132.06/x
3. Step 3: Cross multiply
   116,308.76x = 160,514.19 × 78,132.06
4. Step 4: Simplify right side
   116,308.76x = 12,541,304,323.93
5. Step 5: Solve for x
   x = 12,541,304,323.93/116,308.76
6. Step 6: Final answer
   x = 107,827.69