Finding the Fourth Proportional to 90.59, 125.01 and 86.94

Step by Step Solution

1. Step 1: Write the proportion equation
   90.59 : 125.01 = 86.94 : x
2. Step 2: Convert to fraction form
   90.59/125.01 = 86.94/x
3. Step 3: Cross multiply
   90.59x = 125.01 × 86.94
4. Step 4: Simplify right side
   90.59x = 10,868.37
5. Step 5: Solve for x
   x = 10,868.37/90.59
6. Step 6: Final answer
   x = 119.98