Finding the Fourth Proportional to 208,367.71, 287,547.16 and 112,874.79

Step by Step Solution

1. Step 1: Write the proportion equation
   208,367.71 : 287,547.16 = 112,874.79 : x
2. Step 2: Convert to fraction form
   208,367.71/287,547.16 = 112,874.79/x
3. Step 3: Cross multiply
   208,367.71x = 287,547.16 × 112,874.79
4. Step 4: Simplify right side
   208,367.71x = 32,456,825,300.10
5. Step 5: Solve for x
   x = 32,456,825,300.10/208,367.71
6. Step 6: Final answer
   x = 155,767.06