Finding the Fourth Proportional to 158.71, 237.98 and 55.98

Step by Step Solution

1. Step 1: Write the proportion equation
   158.71 : 237.98 = 55.98 : x
2. Step 2: Convert to fraction form
   158.71/237.98 = 55.98/x
3. Step 3: Cross multiply
   158.71x = 237.98 × 55.98
4. Step 4: Simplify right side
   158.71x = 13,321.89
5. Step 5: Solve for x
   x = 13,321.89/158.71
6. Step 6: Final answer
   x = 83.94