Finding the Fourth Proportional to 151,861.72, 209,568.38 and 83,883.39

Step by Step Solution

1. Step 1: Write the proportion equation
   151,861.72 : 209,568.38 = 83,883.39 : x
2. Step 2: Convert to fraction form
   151,861.72/209,568.38 = 83,883.39/x
3. Step 3: Cross multiply
   151,861.72x = 209,568.38 × 83,883.39
4. Step 4: Simplify right side
   151,861.72x = 17,579,306,151.21
5. Step 5: Solve for x
   x = 17,579,306,151.21/151,861.72
6. Step 6: Final answer
   x = 115,758.64