Finding the Fourth Proportional to 300,648.48, 451,024.52 and 100,988.04

Step by Step Solution

1. Step 1: Write the proportion equation
   300,648.48 : 451,024.52 = 100,988.04 : x
2. Step 2: Convert to fraction form
   300,648.48/451,024.52 = 100,988.04/x
3. Step 3: Cross multiply
   300,648.48x = 451,024.52 × 100,988.04
4. Step 4: Simplify right side
   300,648.48x = 45,548,082,266.74
5. Step 5: Solve for x
   x = 45,548,082,266.74/300,648.48
6. Step 6: Final answer
   x = 151,499.46