Finding the Fourth Proportional to 145,019.32, 200,109.18 and 80,488.24

Step by Step Solution

1. Step 1: Write the proportion equation
   145,019.32 : 200,109.18 = 80,488.24 : x
2. Step 2: Convert to fraction form
   145,019.32/200,109.18 = 80,488.24/x
3. Step 3: Cross multiply
   145,019.32x = 200,109.18 × 80,488.24
4. Step 4: Simplify right side
   145,019.32x = 16,106,435,706.04
5. Step 5: Solve for x
   x = 16,106,435,706.04/145,019.32
6. Step 6: Final answer
   x = 111,064.07