Finding the Fourth Proportional to 151,480.50, 209,044.55 and 83,500.09

Step by Step Solution

1. Step 1: Write the proportion equation
   151,480.50 : 209,044.55 = 83,500.09 : x
2. Step 2: Convert to fraction form
   151,480.50/209,044.55 = 83,500.09/x
3. Step 3: Cross multiply
   151,480.50x = 209,044.55 × 83,500.09
4. Step 4: Simplify right side
   151,480.50x = 17,455,238,739.01
5. Step 5: Solve for x
   x = 17,455,238,739.01/151,480.50
6. Step 6: Final answer
   x = 115,230.93