Finding the Fourth Proportional to 53.37, 72.63 and 53.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53.37 : 72.63 = 53.10 : x
2. Step 2: Convert to fraction form
   53.37/72.63 = 53.10/x
3. Step 3: Cross multiply
   53.37x = 72.63 × 53.10
4. Step 4: Simplify right side
   53.37x = 3,856.65
5. Step 5: Solve for x
   x = 3,856.65/53.37
6. Step 6: Final answer
   x = 72.26