Finding the Fourth Proportional to 208,076.80, 287,146.72 and 112,583.49

Step by Step Solution

1. Step 1: Write the proportion equation
   208,076.80 : 287,146.72 = 112,583.49 : x
2. Step 2: Convert to fraction form
   208,076.80/287,146.72 = 112,583.49/x
3. Step 3: Cross multiply
   208,076.80x = 287,146.72 × 112,583.49
4. Step 4: Simplify right side
   208,076.80x = 32,327,981,366.38
5. Step 5: Solve for x
   x = 32,327,981,366.38/208,076.80
6. Step 6: Final answer
   x = 155,365.62