Finding the Fourth Proportional to 124,518.90, 171,850.83 and 70,812

Step by Step Solution

1. Step 1: Write the proportion equation
   124,518.90 : 171,850.83 = 70,812 : x
2. Step 2: Convert to fraction form
   124,518.90/171,850.83 = 70,812/x
3. Step 3: Cross multiply
   124,518.90x = 171,850.83 × 70,812
4. Step 4: Simplify right side
   124,518.90x = 12,169,100,973.96
5. Step 5: Solve for x
   x = 12,169,100,973.96/124,518.90
6. Step 6: Final answer
   x = 97,728.95