Finding the Fourth Proportional to 208,229.05, 287,355.72 and 112,735.72

Step by Step Solution

1. Step 1: Write the proportion equation
   208,229.05 : 287,355.72 = 112,735.72 : x
2. Step 2: Convert to fraction form
   208,229.05/287,355.72 = 112,735.72/x
3. Step 3: Cross multiply
   208,229.05x = 287,355.72 × 112,735.72
4. Step 4: Simplify right side
   208,229.05x = 32,395,253,990.32
5. Step 5: Solve for x
   x = 32,395,253,990.32/208,229.05
6. Step 6: Final answer
   x = 155,575.09