Finding the Fourth Proportional to 172,323.45, 258,485.31 and 54,003.98

Step by Step Solution

1. Step 1: Write the proportion equation
   172,323.45 : 258,485.31 = 54,003.98 : x
2. Step 2: Convert to fraction form
   172,323.45/258,485.31 = 54,003.98/x
3. Step 3: Cross multiply
   172,323.45x = 258,485.31 × 54,003.98
4. Step 4: Simplify right side
   172,323.45x = 13,959,236,157.75
5. Step 5: Solve for x
   x = 13,959,236,157.75/172,323.45
6. Step 6: Final answer
   x = 81,006.02