Finding the Fourth Proportional to 42.94, 64.63 and 32.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42.94 : 64.63 = 32.86 : x
2. Step 2: Convert to fraction form
   42.94/64.63 = 32.86/x
3. Step 3: Cross multiply
   42.94x = 64.63 × 32.86
4. Step 4: Simplify right side
   42.94x = 2,123.74
5. Step 5: Solve for x
   x = 2,123.74/42.94
6. Step 6: Final answer
   x = 49.46