Finding the Fourth Proportional to 72.96, 100.71 and 45.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72.96 : 100.71 = 45.35 : x
2. Step 2: Convert to fraction form
   72.96/100.71 = 45.35/x
3. Step 3: Cross multiply
   72.96x = 100.71 × 45.35
4. Step 4: Simplify right side
   72.96x = 4,567.45
5. Step 5: Solve for x
   x = 4,567.45/72.96
6. Step 6: Final answer
   x = 62.60