Finding the Fourth Proportional to 839,727.06, 1,259,460.72 and 307,123.53

Step by Step Solution

1. Step 1: Write the proportion equation
   839,727.06 : 1,259,460.72 = 307,123.53 : x
2. Step 2: Convert to fraction form
   839,727.06/1,259,460.72 = 307,123.53/x
3. Step 3: Cross multiply
   839,727.06x = 1,259,460.72 × 307,123.53
4. Step 4: Simplify right side
   839,727.06x = 386,810,022,222.74
5. Step 5: Solve for x
   x = 386,810,022,222.74/839,727.06
6. Step 6: Final answer
   x = 460,637.80