Finding the Fourth Proportional to 307,964.15, 459,099.51 and 303,111.05

Step by Step Solution

1. Step 1: Write the proportion equation
   307,964.15 : 459,099.51 = 303,111.05 : x
2. Step 2: Convert to fraction form
   307,964.15/459,099.51 = 303,111.05/x
3. Step 3: Cross multiply
   307,964.15x = 459,099.51 × 303,111.05
4. Step 4: Simplify right side
   307,964.15x = 139,158,134,530.59
5. Step 5: Solve for x
   x = 139,158,134,530.59/307,964.15
6. Step 6: Final answer
   x = 451,864.72