Finding the Fourth Proportional to 71.03, 106.18 and 55.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71.03 : 106.18 = 55.83 : x
2. Step 2: Convert to fraction form
   71.03/106.18 = 55.83/x
3. Step 3: Cross multiply
   71.03x = 106.18 × 55.83
4. Step 4: Simplify right side
   71.03x = 5,928.29
5. Step 5: Solve for x
   x = 5,928.29/71.03
6. Step 6: Final answer
   x = 83.46