Finding the Fourth Proportional to 67.43, 93.09 and 56.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67.43 : 93.09 = 56.50 : x
2. Step 2: Convert to fraction form
   67.43/93.09 = 56.50/x
3. Step 3: Cross multiply
   67.43x = 93.09 × 56.50
4. Step 4: Simplify right side
   67.43x = 5,259.56
5. Step 5: Solve for x
   x = 5,259.56/67.43
6. Step 6: Final answer
   x = 78.00