Finding the Fourth Proportional to 789,682.72, 1,089,762.02 and 427,106.48

Step by Step Solution

1. Step 1: Write the proportion equation
   789,682.72 : 1,089,762.02 = 427,106.48 : x
2. Step 2: Convert to fraction form
   789,682.72/1,089,762.02 = 427,106.48/x
3. Step 3: Cross multiply
   789,682.72x = 1,089,762.02 × 427,106.48
4. Step 4: Simplify right side
   789,682.72x = 465,444,420,399.89
5. Step 5: Solve for x
   x = 465,444,420,399.89/789,682.72
6. Step 6: Final answer
   x = 589,406.87