Finding the Fourth Proportional to 314,061,610.02, 470,874,259.72 and 139,089,297.21

Step by Step Solution

1. Step 1: Write the proportion equation
   314,061,610.02 : 470,874,259.72 = 139,089,297.21 : x
2. Step 2: Convert to fraction form
   314,061,610.02/470,874,259.72 = 139,089,297.21/x
3. Step 3: Cross multiply
   314,061,610.02x = 470,874,259.72 × 139,089,297.21
4. Step 4: Simplify right side
   314,061,610.02x = 65,493,569,858,733,816
5. Step 5: Solve for x
   x = 65,493,569,858,733,816/314,061,610.02
6. Step 6: Final answer
   x = 208,537,330.79