Finding the Fourth Proportional to 172,300.41, 258,421.46 and 47,612.25

Step by Step Solution

1. Step 1: Write the proportion equation
   172,300.41 : 258,421.46 = 47,612.25 : x
2. Step 2: Convert to fraction form
   172,300.41/258,421.46 = 47,612.25/x
3. Step 3: Cross multiply
   172,300.41x = 258,421.46 × 47,612.25
4. Step 4: Simplify right side
   172,300.41x = 12,304,026,920.82
5. Step 5: Solve for x
   x = 12,304,026,920.82/172,300.41
6. Step 6: Final answer
   x = 71,410.32