Finding the Fourth Proportional to 300,410.10, 450,557.73 and 90,048.06

Step by Step Solution

1. Step 1: Write the proportion equation
   300,410.10 : 450,557.73 = 90,048.06 : x
2. Step 2: Convert to fraction form
   300,410.10/450,557.73 = 90,048.06/x
3. Step 3: Cross multiply
   300,410.10x = 450,557.73 × 90,048.06
4. Step 4: Simplify right side
   300,410.10x = 40,571,849,504.50
5. Step 5: Solve for x
   x = 40,571,849,504.50/300,410.10
6. Step 6: Final answer
   x = 135,054.88