Finding the Fourth Proportional to 314,184,575.76, 470,953,499.12 and 139,389,928

Step by Step Solution

1. Step 1: Write the proportion equation
   314,184,575.76 : 470,953,499.12 = 139,389,928 : x
2. Step 2: Convert to fraction form
   314,184,575.76/470,953,499.12 = 139,389,928/x
3. Step 3: Cross multiply
   314,184,575.76x = 470,953,499.12 × 139,389,928
4. Step 4: Simplify right side
   314,184,575.76x = 65,646,174,333,684,864
5. Step 5: Solve for x
   x = 65,646,174,333,684,864/314,184,575.76
6. Step 6: Final answer
   x = 208,941,429.33