Finding the Fourth Proportional to 300,667.84, 451,084.78 and 267,618.84

Step by Step Solution

1. Step 1: Write the proportion equation
   300,667.84 : 451,084.78 = 267,618.84 : x
2. Step 2: Convert to fraction form
   300,667.84/451,084.78 = 267,618.84/x
3. Step 3: Cross multiply
   300,667.84x = 451,084.78 × 267,618.84
4. Step 4: Simplify right side
   300,667.84x = 120,718,785,565.26
5. Step 5: Solve for x
   x = 120,718,785,565.26/300,667.84
6. Step 6: Final answer
   x = 401,502.15