Finding the Fourth Proportional to 151,648.23, 209,273.12 and 83,665.76

Step by Step Solution

1. Step 1: Write the proportion equation
   151,648.23 : 209,273.12 = 83,665.76 : x
2. Step 2: Convert to fraction form
   151,648.23/209,273.12 = 83,665.76/x
3. Step 3: Cross multiply
   151,648.23x = 209,273.12 × 83,665.76
4. Step 4: Simplify right side
   151,648.23x = 17,508,993,167.68
5. Step 5: Solve for x
   x = 17,508,993,167.68/151,648.23
6. Step 6: Final answer
   x = 115,457.95