Finding the Fourth Proportional to 83.52, 114.89 and 72.59

Step by Step Solution

1. Step 1: Write the proportion equation
   83.52 : 114.89 = 72.59 : x
2. Step 2: Convert to fraction form
   83.52/114.89 = 72.59/x
3. Step 3: Cross multiply
   83.52x = 114.89 × 72.59
4. Step 4: Simplify right side
   83.52x = 8,338.93
5. Step 5: Solve for x
   x = 8,338.93/83.52
6. Step 6: Final answer
   x = 99.84