Finding the Fourth Proportional to 83.34, 114.51 and 78.01

Step by Step Solution

1. Step 1: Write the proportion equation
   83.34 : 114.51 = 78.01 : x
2. Step 2: Convert to fraction form
   83.34/114.51 = 78.01/x
3. Step 3: Cross multiply
   83.34x = 114.51 × 78.01
4. Step 4: Simplify right side
   83.34x = 8,931.96
5. Step 5: Solve for x
   x = 8,931.96/83.34
6. Step 6: Final answer
   x = 107.18