Finding the Fourth Proportional to 503,085.31, 694,243.24 and 276,730.81

Step by Step Solution

1. Step 1: Write the proportion equation
   503,085.31 : 694,243.24 = 276,730.81 : x
2. Step 2: Convert to fraction form
   503,085.31/694,243.24 = 276,730.81/x
3. Step 3: Cross multiply
   503,085.31x = 694,243.24 × 276,730.81
4. Step 4: Simplify right side
   503,085.31x = 192,118,494,142.22
5. Step 5: Solve for x
   x = 192,118,494,142.22/503,085.31
6. Step 6: Final answer
   x = 381,880.55