Finding the Fourth Proportional to 151,641.72, 209,266.27 and 83,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,641.72 : 209,266.27 = 83,659.50 : x
2. Step 2: Convert to fraction form
   151,641.72/209,266.27 = 83,659.50/x
3. Step 3: Cross multiply
   151,641.72x = 209,266.27 × 83,659.50
4. Step 4: Simplify right side
   151,641.72x = 17,507,111,305.92
5. Step 5: Solve for x
   x = 17,507,111,305.92/151,641.72
6. Step 6: Final answer
   x = 115,450.49