Finding the Fourth Proportional to 208,022.42, 287,106.16 and 120,793.94

Step by Step Solution

1. Step 1: Write the proportion equation
   208,022.42 : 287,106.16 = 120,793.94 : x
2. Step 2: Convert to fraction form
   208,022.42/287,106.16 = 120,793.94/x
3. Step 3: Cross multiply
   208,022.42x = 287,106.16 × 120,793.94
4. Step 4: Simplify right side
   208,022.42x = 34,680,684,264.67
5. Step 5: Solve for x
   x = 34,680,684,264.67/208,022.42
6. Step 6: Final answer
   x = 166,716.09