Finding the Fourth Proportional to 45.50, 67.77 and 42.93

Step by Step Solution

1. Step 1: Write the proportion equation
   45.50 : 67.77 = 42.93 : x
2. Step 2: Convert to fraction form
   45.50/67.77 = 42.93/x
3. Step 3: Cross multiply
   45.50x = 67.77 × 42.93
4. Step 4: Simplify right side
   45.50x = 2,909.37
5. Step 5: Solve for x
   x = 2,909.37/45.50
6. Step 6: Final answer
   x = 63.95