Finding the Fourth Proportional to 151,479.50, 209,043.17 and 83,499.09

Step by Step Solution

1. Step 1: Write the proportion equation
   151,479.50 : 209,043.17 = 83,499.09 : x
2. Step 2: Convert to fraction form
   151,479.50/209,043.17 = 83,499.09/x
3. Step 3: Cross multiply
   151,479.50x = 209,043.17 × 83,499.09
4. Step 4: Simplify right side
   151,479.50x = 17,454,914,048.22
5. Step 5: Solve for x
   x = 17,454,914,048.22/151,479.50
6. Step 6: Final answer
   x = 115,229.55