Finding the Fourth Proportional to 146.84, 218.72 and 146.56

Step by Step Solution

1. Step 1: Write the proportion equation
   146.84 : 218.72 = 146.56 : x
2. Step 2: Convert to fraction form
   146.84/218.72 = 146.56/x
3. Step 3: Cross multiply
   146.84x = 218.72 × 146.56
4. Step 4: Simplify right side
   146.84x = 32,055.60
5. Step 5: Solve for x
   x = 32,055.60/146.84
6. Step 6: Final answer
   x = 218.30