Finding the Fourth Proportional to 478,796.16, 716,076.72 and 425,859.82

Step by Step Solution

1. Step 1: Write the proportion equation
   478,796.16 : 716,076.72 = 425,859.82 : x
2. Step 2: Convert to fraction form
   478,796.16/716,076.72 = 425,859.82/x
3. Step 3: Cross multiply
   478,796.16x = 716,076.72 × 425,859.82
4. Step 4: Simplify right side
   478,796.16x = 304,948,303,085.39
5. Step 5: Solve for x
   x = 304,948,303,085.39/478,796.16
6. Step 6: Final answer
   x = 636,906.33