Finding the Fourth Proportional to 300,902.30, 451,572.15 and 123,536.60

Step by Step Solution

1. Step 1: Write the proportion equation
   300,902.30 : 451,572.15 = 123,536.60 : x
2. Step 2: Convert to fraction form
   300,902.30/451,572.15 = 123,536.60/x
3. Step 3: Cross multiply
   300,902.30x = 451,572.15 × 123,536.60
4. Step 4: Simplify right side
   300,902.30x = 55,785,688,065.69
5. Step 5: Solve for x
   x = 55,785,688,065.69/300,902.30
6. Step 6: Final answer
   x = 185,394.69