Finding the Fourth Proportional to 72.83, 109.01 and 61.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72.83 : 109.01 = 61.83 : x
2. Step 2: Convert to fraction form
   72.83/109.01 = 61.83/x
3. Step 3: Cross multiply
   72.83x = 109.01 × 61.83
4. Step 4: Simplify right side
   72.83x = 6,740.09
5. Step 5: Solve for x
   x = 6,740.09/72.83
6. Step 6: Final answer
   x = 92.55