Finding the Fourth Proportional to 151,439.58, 208,995.75 and 83,456.37

Step by Step Solution

1. Step 1: Write the proportion equation
   151,439.58 : 208,995.75 = 83,456.37 : x
2. Step 2: Convert to fraction form
   151,439.58/208,995.75 = 83,456.37/x
3. Step 3: Cross multiply
   151,439.58x = 208,995.75 × 83,456.37
4. Step 4: Simplify right side
   151,439.58x = 17,442,026,640.43
5. Step 5: Solve for x
   x = 17,442,026,640.43/151,439.58
6. Step 6: Final answer
   x = 115,174.82