Finding the Fourth Proportional to 105.32, 156.88 and 104.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105.32 : 156.88 = 104.52 : x
2. Step 2: Convert to fraction form
   105.32/156.88 = 104.52/x
3. Step 3: Cross multiply
   105.32x = 156.88 × 104.52
4. Step 4: Simplify right side
   105.32x = 16,397.10
5. Step 5: Solve for x
   x = 16,397.10/105.32
6. Step 6: Final answer
   x = 155.69