Finding the Fourth Proportional to 42.94, 64.31 and 29.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42.94 : 64.31 = 29.34 : x
2. Step 2: Convert to fraction form
   42.94/64.31 = 29.34/x
3. Step 3: Cross multiply
   42.94x = 64.31 × 29.34
4. Step 4: Simplify right side
   42.94x = 1,886.86
5. Step 5: Solve for x
   x = 1,886.86/42.94
6. Step 6: Final answer
   x = 43.94