Finding the Fourth Proportional to 365,155.56, 503,896.68 and 203,978.52

Step by Step Solution

1. Step 1: Write the proportion equation
   365,155.56 : 503,896.68 = 203,978.52 : x
2. Step 2: Convert to fraction form
   365,155.56/503,896.68 = 203,978.52/x
3. Step 3: Cross multiply
   365,155.56x = 503,896.68 × 203,978.52
4. Step 4: Simplify right side
   365,155.56x = 102,784,099,019.31
5. Step 5: Solve for x
   x = 102,784,099,019.31/365,155.56
6. Step 6: Final answer
   x = 281,480.31