Finding the Fourth Proportional to 452,767.35, 678,191.43 and 309,942.59

Step by Step Solution

1. Step 1: Write the proportion equation
   452,767.35 : 678,191.43 = 309,942.59 : x
2. Step 2: Convert to fraction form
   452,767.35/678,191.43 = 309,942.59/x
3. Step 3: Cross multiply
   452,767.35x = 678,191.43 × 309,942.59
4. Step 4: Simplify right side
   452,767.35x = 210,200,406,101.33
5. Step 5: Solve for x
   x = 210,200,406,101.33/452,767.35
6. Step 6: Final answer
   x = 464,256.98