Finding the Fourth Proportional to 321,822.78, 482,800.56 and 105,697.81

Step by Step Solution

1. Step 1: Write the proportion equation
   321,822.78 : 482,800.56 = 105,697.81 : x
2. Step 2: Convert to fraction form
   321,822.78/482,800.56 = 105,697.81/x
3. Step 3: Cross multiply
   321,822.78x = 482,800.56 × 105,697.81
4. Step 4: Simplify right side
   321,822.78x = 51,030,961,858.77
5. Step 5: Solve for x
   x = 51,030,961,858.77/321,822.78
6. Step 6: Final answer
   x = 158,568.52