Finding the Fourth Proportional to 124,694.34, 172,086.98 and 70,979.38

Step by Step Solution

1. Step 1: Write the proportion equation
   124,694.34 : 172,086.98 = 70,979.38 : x
2. Step 2: Convert to fraction form
   124,694.34/172,086.98 = 70,979.38/x
3. Step 3: Cross multiply
   124,694.34x = 172,086.98 × 70,979.38
4. Step 4: Simplify right side
   124,694.34x = 12,214,627,146.47
5. Step 5: Solve for x
   x = 12,214,627,146.47/124,694.34
6. Step 6: Final answer
   x = 97,956.55