Finding the Fourth Proportional to 151,883.69, 209,595.42 and 83,899.20

Step by Step Solution

1. Step 1: Write the proportion equation
   151,883.69 : 209,595.42 = 83,899.20 : x
2. Step 2: Convert to fraction form
   151,883.69/209,595.42 = 83,899.20/x
3. Step 3: Cross multiply
   151,883.69x = 209,595.42 × 83,899.20
4. Step 4: Simplify right side
   151,883.69x = 17,584,888,847.65
5. Step 5: Solve for x
   x = 17,584,888,847.65/151,883.69
6. Step 6: Final answer
   x = 115,778.66