Finding the Fourth Proportional to 91.83, 137.57 and 73.59

Step by Step Solution

1. Step 1: Write the proportion equation
   91.83 : 137.57 = 73.59 : x
2. Step 2: Convert to fraction form
   91.83/137.57 = 73.59/x
3. Step 3: Cross multiply
   91.83x = 137.57 × 73.59
4. Step 4: Simplify right side
   91.83x = 10,122.89
5. Step 5: Solve for x
   x = 10,122.89/91.83
6. Step 6: Final answer
   x = 110.23