Finding the Fourth Proportional to 150,783.33, 208,083.38 and 81,872.75

Step by Step Solution

1. Step 1: Write the proportion equation
   150,783.33 : 208,083.38 = 81,872.75 : x
2. Step 2: Convert to fraction form
   150,783.33/208,083.38 = 81,872.75/x
3. Step 3: Cross multiply
   150,783.33x = 208,083.38 × 81,872.75
4. Step 4: Simplify right side
   150,783.33x = 17,036,358,411.90
5. Step 5: Solve for x
   x = 17,036,358,411.90/150,783.33
6. Step 6: Final answer
   x = 112,985.69