Finding the Fourth Proportional to 90.32, 124.55 and 69.59

Step by Step Solution

1. Step 1: Write the proportion equation
   90.32 : 124.55 = 69.59 : x
2. Step 2: Convert to fraction form
   90.32/124.55 = 69.59/x
3. Step 3: Cross multiply
   90.32x = 124.55 × 69.59
4. Step 4: Simplify right side
   90.32x = 8,666.46
5. Step 5: Solve for x
   x = 8,666.46/90.32
6. Step 6: Final answer
   x = 95.96