Finding the Fourth Proportional to 90.35, 124.72 and 59.26

Step by Step Solution

1. Step 1: Write the proportion equation
   90.35 : 124.72 = 59.26 : x
2. Step 2: Convert to fraction form
   90.35/124.72 = 59.26/x
3. Step 3: Cross multiply
   90.35x = 124.72 × 59.26
4. Step 4: Simplify right side
   90.35x = 7,390.91
5. Step 5: Solve for x
   x = 7,390.91/90.35
6. Step 6: Final answer
   x = 81.81