Finding the Fourth Proportional to 789,678.73, 1,089,756.82 and 445,587.69

Step by Step Solution

1. Step 1: Write the proportion equation
   789,678.73 : 1,089,756.82 = 445,587.69 : x
2. Step 2: Convert to fraction form
   789,678.73/1,089,756.82 = 445,587.69/x
3. Step 3: Cross multiply
   789,678.73x = 1,089,756.82 × 445,587.69
4. Step 4: Simplify right side
   789,678.73x = 485,582,224,085.55
5. Step 5: Solve for x
   x = 485,582,224,085.55/789,678.73
6. Step 6: Final answer
   x = 614,911.11