Finding the Fourth Proportional to 1,089,485,105.30, 1,503,365,287.41 and 613,083,456.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,485,105.30 : 1,503,365,287.41 = 613,083,456.80 : x
2. Step 2: Convert to fraction form
   1,089,485,105.30/1,503,365,287.41 = 613,083,456.80/x
3. Step 3: Cross multiply
   1,089,485,105.30x = 1,503,365,287.41 × 613,083,456.80
4. Step 4: Simplify right side
   1,089,485,105.30x = 921,688,387,230,931,456
5. Step 5: Solve for x
   x = 921,688,387,230,931,456/1,089,485,105.30
6. Step 6: Final answer
   x = 845,985,303.29