Finding the Fourth Proportional to 67.41, 100.89 and 58.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67.41 : 100.89 = 58.50 : x
2. Step 2: Convert to fraction form
   67.41/100.89 = 58.50/x
3. Step 3: Cross multiply
   67.41x = 100.89 × 58.50
4. Step 4: Simplify right side
   67.41x = 5,902.07
5. Step 5: Solve for x
   x = 5,902.07/67.41
6. Step 6: Final answer
   x = 87.55