Finding the Fourth Proportional to 124,979.58, 172,467.59 and 71,281.89

Step by Step Solution

1. Step 1: Write the proportion equation
   124,979.58 : 172,467.59 = 71,281.89 : x
2. Step 2: Convert to fraction form
   124,979.58/172,467.59 = 71,281.89/x
3. Step 3: Cross multiply
   124,979.58x = 172,467.59 × 71,281.89
4. Step 4: Simplify right side
   124,979.58x = 12,293,815,422.54
5. Step 5: Solve for x
   x = 12,293,815,422.54/124,979.58
6. Step 6: Final answer
   x = 98,366.59