Finding the Fourth Proportional to 42.99, 59.16 and 37.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42.99 : 59.16 = 37.77 : x
2. Step 2: Convert to fraction form
   42.99/59.16 = 37.77/x
3. Step 3: Cross multiply
   42.99x = 59.16 × 37.77
4. Step 4: Simplify right side
   42.99x = 2,234.47
5. Step 5: Solve for x
   x = 2,234.47/42.99
6. Step 6: Final answer
   x = 51.98