Finding the Fourth Proportional to 91.49, 126.18 and 56.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91.49 : 126.18 = 56.52 : x
2. Step 2: Convert to fraction form
   91.49/126.18 = 56.52/x
3. Step 3: Cross multiply
   91.49x = 126.18 × 56.52
4. Step 4: Simplify right side
   91.49x = 7,131.69
5. Step 5: Solve for x
   x = 7,131.69/91.49
6. Step 6: Final answer
   x = 77.95