Finding the Fourth Proportional to 570,105.41, 786,620.50 and 340,628.22

Step by Step Solution

1. Step 1: Write the proportion equation
   570,105.41 : 786,620.50 = 340,628.22 : x
2. Step 2: Convert to fraction form
   570,105.41/786,620.50 = 340,628.22/x
3. Step 3: Cross multiply
   570,105.41x = 786,620.50 × 340,628.22
4. Step 4: Simplify right side
   570,105.41x = 267,945,139,878.94
5. Step 5: Solve for x
   x = 267,945,139,878.94/570,105.41
6. Step 6: Final answer
   x = 469,992.28