Finding the Fourth Proportional to 572,667.28, 790,290.36 and 314,568.10

Step by Step Solution

1. Step 1: Write the proportion equation
   572,667.28 : 790,290.36 = 314,568.10 : x
2. Step 2: Convert to fraction form
   572,667.28/790,290.36 = 314,568.10/x
3. Step 3: Cross multiply
   572,667.28x = 790,290.36 × 314,568.10
4. Step 4: Simplify right side
   572,667.28x = 248,600,136,993.52
5. Step 5: Solve for x
   x = 248,600,136,993.52/572,667.28
6. Step 6: Final answer
   x = 434,109.20