Finding the Fourth Proportional to 309,510.27, 464,306.72 and 122,478.03

Step by Step Solution

1. Step 1: Write the proportion equation
   309,510.27 : 464,306.72 = 122,478.03 : x
2. Step 2: Convert to fraction form
   309,510.27/464,306.72 = 122,478.03/x
3. Step 3: Cross multiply
   309,510.27x = 464,306.72 × 122,478.03
4. Step 4: Simplify right side
   309,510.27x = 56,867,372,381.36
5. Step 5: Solve for x
   x = 56,867,372,381.36/309,510.27
6. Step 6: Final answer
   x = 183,733.39