Finding the Fourth Proportional to 172,081.56, 258,158.79 and 53,761.82

Step by Step Solution

1. Step 1: Write the proportion equation
   172,081.56 : 258,158.79 = 53,761.82 : x
2. Step 2: Convert to fraction form
   172,081.56/258,158.79 = 53,761.82/x
3. Step 3: Cross multiply
   172,081.56x = 258,158.79 × 53,761.82
4. Step 4: Simplify right side
   172,081.56x = 13,879,086,130.59
5. Step 5: Solve for x
   x = 13,879,086,130.59/172,081.56
6. Step 6: Final answer
   x = 80,654.12