Finding the Fourth Proportional to 151,524.20, 209,104.80 and 83,543.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,524.20 : 209,104.80 = 83,543.56 : x
2. Step 2: Convert to fraction form
   151,524.20/209,104.80 = 83,543.56/x
3. Step 3: Cross multiply
   151,524.20x = 209,104.80 × 83,543.56
4. Step 4: Simplify right side
   151,524.20x = 17,469,359,405.09
5. Step 5: Solve for x
   x = 17,469,359,405.09/151,524.20
6. Step 6: Final answer
   x = 115,290.89