Finding the Fourth Proportional to 124,616.75, 171,980.37 and 70,919.01

Step by Step Solution

1. Step 1: Write the proportion equation
   124,616.75 : 171,980.37 = 70,919.01 : x
2. Step 2: Convert to fraction form
   124,616.75/171,980.37 = 70,919.01/x
3. Step 3: Cross multiply
   124,616.75x = 171,980.37 × 70,919.01
4. Step 4: Simplify right side
   124,616.75x = 12,196,677,579.83
5. Step 5: Solve for x
   x = 12,196,677,579.83/124,616.75
6. Step 6: Final answer
   x = 97,873.50