Finding the Fourth Proportional to 215,355, 323,047.33 and 73,142.22

Step by Step Solution

1. Step 1: Write the proportion equation
   215,355 : 323,047.33 = 73,142.22 : x
2. Step 2: Convert to fraction form
   215,355/323,047.33 = 73,142.22/x
3. Step 3: Cross multiply
   215,355x = 323,047.33 × 73,142.22
4. Step 4: Simplify right side
   215,355x = 23,628,398,698.42
5. Step 5: Solve for x
   x = 23,628,398,698.42/215,355
6. Step 6: Final answer
   x = 109,718.37