Finding the Fourth Proportional to 613,761.43, 846,964.33 and 443,700.31

Step by Step Solution

1. Step 1: Write the proportion equation
   613,761.43 : 846,964.33 = 443,700.31 : x
2. Step 2: Convert to fraction form
   613,761.43/846,964.33 = 443,700.31/x
3. Step 3: Cross multiply
   613,761.43x = 846,964.33 × 443,700.31
4. Step 4: Simplify right side
   613,761.43x = 375,798,335,779.94
5. Step 5: Solve for x
   x = 375,798,335,779.94/613,761.43
6. Step 6: Final answer
   x = 612,287.31