Finding the Fourth Proportional to 199,189.80, 298,558.71 and 124,343.37

Step by Step Solution

1. Step 1: Write the proportion equation
   199,189.80 : 298,558.71 = 124,343.37 : x
2. Step 2: Convert to fraction form
   199,189.80/298,558.71 = 124,343.37/x
3. Step 3: Cross multiply
   199,189.80x = 298,558.71 × 124,343.37
4. Step 4: Simplify right side
   199,189.80x = 37,123,796,144.25
5. Step 5: Solve for x
   x = 37,123,796,144.25/199,189.80
6. Step 6: Final answer
   x = 186,373.98