Finding the Fourth Proportional to 42.93, 64.69 and 37.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42.93 : 64.69 = 37.94 : x
2. Step 2: Convert to fraction form
   42.93/64.69 = 37.94/x
3. Step 3: Cross multiply
   42.93x = 64.69 × 37.94
4. Step 4: Simplify right side
   42.93x = 2,453.92
5. Step 5: Solve for x
   x = 2,453.92/42.93
6. Step 6: Final answer
   x = 57.16