Finding the Fourth Proportional to 113.34, 156.30 and 69.69

Step by Step Solution

1. Step 1: Write the proportion equation
   113.34 : 156.30 = 69.69 : x
2. Step 2: Convert to fraction form
   113.34/156.30 = 69.69/x
3. Step 3: Cross multiply
   113.34x = 156.30 × 69.69
4. Step 4: Simplify right side
   113.34x = 10,892.55
5. Step 5: Solve for x
   x = 10,892.55/113.34
6. Step 6: Final answer
   x = 96.11