Finding the Fourth Proportional to 70.18, 105.37 and 55.82

Step by Step Solution

1. Step 1: Write the proportion equation
   70.18 : 105.37 = 55.82 : x
2. Step 2: Convert to fraction form
   70.18/105.37 = 55.82/x
3. Step 3: Cross multiply
   70.18x = 105.37 × 55.82
4. Step 4: Simplify right side
   70.18x = 5,881.75
5. Step 5: Solve for x
   x = 5,881.75/70.18
6. Step 6: Final answer
   x = 83.82