Finding the Fourth Proportional to 124,685.63, 172,067.27 and 70,974.10

Step by Step Solution

1. Step 1: Write the proportion equation
   124,685.63 : 172,067.27 = 70,974.10 : x
2. Step 2: Convert to fraction form
   124,685.63/172,067.27 = 70,974.10/x
3. Step 3: Cross multiply
   124,685.63x = 172,067.27 × 70,974.10
4. Step 4: Simplify right side
   124,685.63x = 12,212,319,627.71
5. Step 5: Solve for x
   x = 12,212,319,627.71/124,685.63
6. Step 6: Final answer
   x = 97,944.88