Finding the Fourth Proportional to 78.52, 108.32 and 53.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78.52 : 108.32 = 53.96 : x
2. Step 2: Convert to fraction form
   78.52/108.32 = 53.96/x
3. Step 3: Cross multiply
   78.52x = 108.32 × 53.96
4. Step 4: Simplify right side
   78.52x = 5,844.95
5. Step 5: Solve for x
   x = 5,844.95/78.52
6. Step 6: Final answer
   x = 74.44