Finding the Fourth Proportional to 763,081.91, 1,143,096.82 and 459,309.23

Step by Step Solution

1. Step 1: Write the proportion equation
   763,081.91 : 1,143,096.82 = 459,309.23 : x
2. Step 2: Convert to fraction form
   763,081.91/1,143,096.82 = 459,309.23/x
3. Step 3: Cross multiply
   763,081.91x = 1,143,096.82 × 459,309.23
4. Step 4: Simplify right side
   763,081.91x = 525,034,913,345.89
5. Step 5: Solve for x
   x = 525,034,913,345.89/763,081.91
6. Step 6: Final answer
   x = 688,045.29