Finding the Fourth Proportional to 104.83, 156.52 and 90.37

Step by Step Solution

1. Step 1: Write the proportion equation
   104.83 : 156.52 = 90.37 : x
2. Step 2: Convert to fraction form
   104.83/156.52 = 90.37/x
3. Step 3: Cross multiply
   104.83x = 156.52 × 90.37
4. Step 4: Simplify right side
   104.83x = 14,144.71
5. Step 5: Solve for x
   x = 14,144.71/104.83
6. Step 6: Final answer
   x = 134.93