Finding the Fourth Proportional to 225,479.12, 311,164.58 and 123,513.98

Step by Step Solution

1. Step 1: Write the proportion equation
   225,479.12 : 311,164.58 = 123,513.98 : x
2. Step 2: Convert to fraction form
   225,479.12/311,164.58 = 123,513.98/x
3. Step 3: Cross multiply
   225,479.12x = 311,164.58 × 123,513.98
4. Step 4: Simplify right side
   225,479.12x = 38,433,175,710.83
5. Step 5: Solve for x
   x = 38,433,175,710.83/225,479.12
6. Step 6: Final answer
   x = 170,451.15