Finding the Fourth Proportional to 208,077.49, 287,144.89 and 112,582.09

Step by Step Solution

1. Step 1: Write the proportion equation
   208,077.49 : 287,144.89 = 112,582.09 : x
2. Step 2: Convert to fraction form
   208,077.49/287,144.89 = 112,582.09/x
3. Step 3: Cross multiply
   208,077.49x = 287,144.89 × 112,582.09
4. Step 4: Simplify right side
   208,077.49x = 32,327,371,849.02
5. Step 5: Solve for x
   x = 32,327,371,849.02/208,077.49
6. Step 6: Final answer
   x = 155,362.18