Finding the Fourth Proportional to 71.01, 97.83 and 53.55

Step by Step Solution

1. Step 1: Write the proportion equation
   71.01 : 97.83 = 53.55 : x
2. Step 2: Convert to fraction form
   71.01/97.83 = 53.55/x
3. Step 3: Cross multiply
   71.01x = 97.83 × 53.55
4. Step 4: Simplify right side
   71.01x = 5,238.80
5. Step 5: Solve for x
   x = 5,238.80/71.01
6. Step 6: Final answer
   x = 73.78