Finding the Fourth Proportional to 112,651.49, 155,448.50 and 67,320.45

Step by Step Solution

1. Step 1: Write the proportion equation
   112,651.49 : 155,448.50 = 67,320.45 : x
2. Step 2: Convert to fraction form
   112,651.49/155,448.50 = 67,320.45/x
3. Step 3: Cross multiply
   112,651.49x = 155,448.50 × 67,320.45
4. Step 4: Simplify right side
   112,651.49x = 10,464,862,971.83
5. Step 5: Solve for x
   x = 10,464,862,971.83/112,651.49
6. Step 6: Final answer
   x = 92,895.91