Finding the Fourth Proportional to 191,419.82, 287,149.37 and 73,190.60

Step by Step Solution

1. Step 1: Write the proportion equation
   191,419.82 : 287,149.37 = 73,190.60 : x
2. Step 2: Convert to fraction form
   191,419.82/287,149.37 = 73,190.60/x
3. Step 3: Cross multiply
   191,419.82x = 287,149.37 × 73,190.60
4. Step 4: Simplify right side
   191,419.82x = 21,016,632,878.22
5. Step 5: Solve for x
   x = 21,016,632,878.22/191,419.82
6. Step 6: Final answer
   x = 109,793.40