Finding the Fourth Proportional to 172,304.53, 258,422.72 and 163,760.09

Step by Step Solution

1. Step 1: Write the proportion equation
   172,304.53 : 258,422.72 = 163,760.09 : x
2. Step 2: Convert to fraction form
   172,304.53/258,422.72 = 163,760.09/x
3. Step 3: Cross multiply
   172,304.53x = 258,422.72 × 163,760.09
4. Step 4: Simplify right side
   172,304.53x = 42,319,325,774.33
5. Step 5: Solve for x
   x = 42,319,325,774.33/172,304.53
6. Step 6: Final answer
   x = 245,607.74