Finding the Fourth Proportional to 808,095.78, 1,115,120.79 and 445,499.82

Step by Step Solution

1. Step 1: Write the proportion equation
   808,095.78 : 1,115,120.79 = 445,499.82 : x
2. Step 2: Convert to fraction form
   808,095.78/1,115,120.79 = 445,499.82/x
3. Step 3: Cross multiply
   808,095.78x = 1,115,120.79 × 445,499.82
4. Step 4: Simplify right side
   808,095.78x = 496,786,111,223.26
5. Step 5: Solve for x
   x = 496,786,111,223.26/808,095.78
6. Step 6: Final answer
   x = 614,761.42