Finding the Fourth Proportional to 72.69, 100.17 and 58.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72.69 : 100.17 = 58.83 : x
2. Step 2: Convert to fraction form
   72.69/100.17 = 58.83/x
3. Step 3: Cross multiply
   72.69x = 100.17 × 58.83
4. Step 4: Simplify right side
   72.69x = 5,893.00
5. Step 5: Solve for x
   x = 5,893.00/72.69
6. Step 6: Final answer
   x = 81.07