Finding the Fourth Proportional to 124,389.69, 171,657.82 and 70,674.78

Step by Step Solution

1. Step 1: Write the proportion equation
   124,389.69 : 171,657.82 = 70,674.78 : x
2. Step 2: Convert to fraction form
   124,389.69/171,657.82 = 70,674.78/x
3. Step 3: Cross multiply
   124,389.69x = 171,657.82 × 70,674.78
4. Step 4: Simplify right side
   124,389.69x = 12,131,878,629.04
5. Step 5: Solve for x
   x = 12,131,878,629.04/124,389.69
6. Step 6: Final answer
   x = 97,531.22