Finding the Fourth Proportional to 208,289.97, 287,439.72 and 112,796.37

Step by Step Solution

1. Step 1: Write the proportion equation
   208,289.97 : 287,439.72 = 112,796.37 : x
2. Step 2: Convert to fraction form
   208,289.97/287,439.72 = 112,796.37/x
3. Step 3: Cross multiply
   208,289.97x = 287,439.72 × 112,796.37
4. Step 4: Simplify right side
   208,289.97x = 32,422,157,009.82
5. Step 5: Solve for x
   x = 32,422,157,009.82/208,289.97
6. Step 6: Final answer
   x = 155,658.75