Finding the Fourth Proportional to 93.06, 128.52 and 83.34

Step by Step Solution

1. Step 1: Write the proportion equation
   93.06 : 128.52 = 83.34 : x
2. Step 2: Convert to fraction form
   93.06/128.52 = 83.34/x
3. Step 3: Cross multiply
   93.06x = 128.52 × 83.34
4. Step 4: Simplify right side
   93.06x = 10,710.86
5. Step 5: Solve for x
   x = 10,710.86/93.06
6. Step 6: Final answer
   x = 115.10