Finding the Fourth Proportional to 80.63, 111.20 and 52.93

Step by Step Solution

1. Step 1: Write the proportion equation
   80.63 : 111.20 = 52.93 : x
2. Step 2: Convert to fraction form
   80.63/111.20 = 52.93/x
3. Step 3: Cross multiply
   80.63x = 111.20 × 52.93
4. Step 4: Simplify right side
   80.63x = 5,885.82
5. Step 5: Solve for x
   x = 5,885.82/80.63
6. Step 6: Final answer
   x = 73.00