Finding the Fourth Proportional to 151,514.75, 209,086.51 and 83,530.15

Step by Step Solution

1. Step 1: Write the proportion equation
   151,514.75 : 209,086.51 = 83,530.15 : x
2. Step 2: Convert to fraction form
   151,514.75/209,086.51 = 83,530.15/x
3. Step 3: Cross multiply
   151,514.75x = 209,086.51 × 83,530.15
4. Step 4: Simplify right side
   151,514.75x = 17,465,027,543.28
5. Step 5: Solve for x
   x = 17,465,027,543.28/151,514.75
6. Step 6: Final answer
   x = 115,269.49