Finding the Fourth Proportional to 208,271.58, 287,414.37 and 112,777.98

Step by Step Solution

1. Step 1: Write the proportion equation
   208,271.58 : 287,414.37 = 112,777.98 : x
2. Step 2: Convert to fraction form
   208,271.58/287,414.37 = 112,777.98/x
3. Step 3: Cross multiply
   208,271.58x = 287,414.37 × 112,777.98
4. Step 4: Simplify right side
   208,271.58x = 32,414,012,071.57
5. Step 5: Solve for x
   x = 32,414,012,071.57/208,271.58
6. Step 6: Final answer
   x = 155,633.39