Finding the Fourth Proportional to 72.16, 108.25 and 37.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72.16 : 108.25 = 37.83 : x
2. Step 2: Convert to fraction form
   72.16/108.25 = 37.83/x
3. Step 3: Cross multiply
   72.16x = 108.25 × 37.83
4. Step 4: Simplify right side
   72.16x = 4,095.10
5. Step 5: Solve for x
   x = 4,095.10/72.16
6. Step 6: Final answer
   x = 56.75