Finding the Fourth Proportional to 91.51, 137.00 and 76.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91.51 : 137.00 = 76.34 : x
2. Step 2: Convert to fraction form
   91.51/137.00 = 76.34/x
3. Step 3: Cross multiply
   91.51x = 137.00 × 76.34
4. Step 4: Simplify right side
   91.51x = 10,458.20
5. Step 5: Solve for x
   x = 10,458.20/91.51
6. Step 6: Final answer
   x = 114.29