Finding the Fourth Proportional to 300,003.43, 450,005.55 and 122,510.42

Step by Step Solution

1. Step 1: Write the proportion equation
   300,003.43 : 450,005.55 = 122,510.42 : x
2. Step 2: Convert to fraction form
   300,003.43/450,005.55 = 122,510.42/x
3. Step 3: Cross multiply
   300,003.43x = 450,005.55 × 122,510.42
4. Step 4: Simplify right side
   300,003.43x = 55,130,370,057.84
5. Step 5: Solve for x
   x = 55,130,370,057.84/300,003.43
6. Step 6: Final answer
   x = 183,765.80