Finding the Fourth Proportional to 116,156.52, 160,345.08 and 78,481.80

Step by Step Solution

1. Step 1: Write the proportion equation
   116,156.52 : 160,345.08 = 78,481.80 : x
2. Step 2: Convert to fraction form
   116,156.52/160,345.08 = 78,481.80/x
3. Step 3: Cross multiply
   116,156.52x = 160,345.08 × 78,481.80
4. Step 4: Simplify right side
   116,156.52x = 12,584,170,499.54
5. Step 5: Solve for x
   x = 12,584,170,499.54/116,156.52
6. Step 6: Final answer
   x = 108,338.05