Finding the Fourth Proportional to 309,116.96, 426,162.48 and 264,276.56

Step by Step Solution

1. Step 1: Write the proportion equation
   309,116.96 : 426,162.48 = 264,276.56 : x
2. Step 2: Convert to fraction form
   309,116.96/426,162.48 = 264,276.56/x
3. Step 3: Cross multiply
   309,116.96x = 426,162.48 × 264,276.56
4. Step 4: Simplify right side
   309,116.96x = 112,624,754,215.47
5. Step 5: Solve for x
   x = 112,624,754,215.47/309,116.96
6. Step 6: Final answer
   x = 364,343.50