Finding the Fourth Proportional to 53.34, 73.71 and 42.96

Step by Step Solution

1. Step 1: Write the proportion equation
   53.34 : 73.71 = 42.96 : x
2. Step 2: Convert to fraction form
   53.34/73.71 = 42.96/x
3. Step 3: Cross multiply
   53.34x = 73.71 × 42.96
4. Step 4: Simplify right side
   53.34x = 3,166.58
5. Step 5: Solve for x
   x = 3,166.58/53.34
6. Step 6: Final answer
   x = 59.37