Finding the Fourth Proportional to 90.18, 124.27 and 69.46

Step by Step Solution

1. Step 1: Write the proportion equation
   90.18 : 124.27 = 69.46 : x
2. Step 2: Convert to fraction form
   90.18/124.27 = 69.46/x
3. Step 3: Cross multiply
   90.18x = 124.27 × 69.46
4. Step 4: Simplify right side
   90.18x = 8,631.31
5. Step 5: Solve for x
   x = 8,631.31/90.18
6. Step 6: Final answer
   x = 95.71