Finding the Fourth Proportional to 67.89, 93.71 and 42.98

Step by Step Solution

1. Step 1: Write the proportion equation
   67.89 : 93.71 = 42.98 : x
2. Step 2: Convert to fraction form
   67.89/93.71 = 42.98/x
3. Step 3: Cross multiply
   67.89x = 93.71 × 42.98
4. Step 4: Simplify right side
   67.89x = 4,027.78
5. Step 5: Solve for x
   x = 4,027.78/67.89
6. Step 6: Final answer
   x = 59.32