Finding the Fourth Proportional to 151,561.13, 209,151.55 and 83,584.37

Step by Step Solution

1. Step 1: Write the proportion equation
   151,561.13 : 209,151.55 = 83,584.37 : x
2. Step 2: Convert to fraction form
   151,561.13/209,151.55 = 83,584.37/x
3. Step 3: Cross multiply
   151,561.13x = 209,151.55 × 83,584.37
4. Step 4: Simplify right side
   151,561.13x = 17,481,801,168.63
5. Step 5: Solve for x
   x = 17,481,801,168.63/151,561.13
6. Step 6: Final answer
   x = 115,344.89