Finding the Fourth Proportional to 95.31, 131.53 and 53.30

Step by Step Solution

1. Step 1: Write the proportion equation
   95.31 : 131.53 = 53.30 : x
2. Step 2: Convert to fraction form
   95.31/131.53 = 53.30/x
3. Step 3: Cross multiply
   95.31x = 131.53 × 53.30
4. Step 4: Simplify right side
   95.31x = 7,010.10
5. Step 5: Solve for x
   x = 7,010.10/95.31
6. Step 6: Final answer
   x = 73.55