Finding the Fourth Proportional to 300,412.35, 450,561.15 and 90,050.29

Step by Step Solution

1. Step 1: Write the proportion equation
   300,412.35 : 450,561.15 = 90,050.29 : x
2. Step 2: Convert to fraction form
   300,412.35/450,561.15 = 90,050.29/x
3. Step 3: Cross multiply
   300,412.35x = 450,561.15 × 90,050.29
4. Step 4: Simplify right side
   300,412.35x = 40,573,161,093.83
5. Step 5: Solve for x
   x = 40,573,161,093.83/300,412.35
6. Step 6: Final answer
   x = 135,058.23