Finding the Fourth Proportional to 112,456.60, 155,164.53 and 67,149.25

Step by Step Solution

1. Step 1: Write the proportion equation
   112,456.60 : 155,164.53 = 67,149.25 : x
2. Step 2: Convert to fraction form
   112,456.60/155,164.53 = 67,149.25/x
3. Step 3: Cross multiply
   112,456.60x = 155,164.53 × 67,149.25
4. Step 4: Simplify right side
   112,456.60x = 10,419,181,816.10
5. Step 5: Solve for x
   x = 10,419,181,816.10/112,456.60
6. Step 6: Final answer
   x = 92,650.69