Finding the Fourth Proportional to 112,628.40, 155,411.83 and 67,296.79

Step by Step Solution

1. Step 1: Write the proportion equation
   112,628.40 : 155,411.83 = 67,296.79 : x
2. Step 2: Convert to fraction form
   112,628.40/155,411.83 = 67,296.79/x
3. Step 3: Cross multiply
   112,628.40x = 155,411.83 × 67,296.79
4. Step 4: Simplify right side
   112,628.40x = 10,458,717,287.03
5. Step 5: Solve for x
   x = 10,458,717,287.03/112,628.40
6. Step 6: Final answer
   x = 92,860.39