Finding the Fourth Proportional to 300,382.29, 450,516.01 and 90,020.22

Step by Step Solution

1. Step 1: Write the proportion equation
   300,382.29 : 450,516.01 = 90,020.22 : x
2. Step 2: Convert to fraction form
   300,382.29/450,516.01 = 90,020.22/x
3. Step 3: Cross multiply
   300,382.29x = 450,516.01 × 90,020.22
4. Step 4: Simplify right side
   300,382.29x = 40,555,550,333.72
5. Step 5: Solve for x
   x = 40,555,550,333.72/300,382.29
6. Step 6: Final answer
   x = 135,013.12