Finding the Fourth Proportional to 113.59, 156.72 and 69.94

Step by Step Solution

1. Step 1: Write the proportion equation
   113.59 : 156.72 = 69.94 : x
2. Step 2: Convert to fraction form
   113.59/156.72 = 69.94/x
3. Step 3: Cross multiply
   113.59x = 156.72 × 69.94
4. Step 4: Simplify right side
   113.59x = 10,961.00
5. Step 5: Solve for x
   x = 10,961.00/113.59
6. Step 6: Final answer
   x = 96.50