Finding the Fourth Proportional to 72.99, 100.77 and 46.77

Step by Step Solution

1. Step 1: Write the proportion equation
   72.99 : 100.77 = 46.77 : x
2. Step 2: Convert to fraction form
   72.99/100.77 = 46.77/x
3. Step 3: Cross multiply
   72.99x = 100.77 × 46.77
4. Step 4: Simplify right side
   72.99x = 4,713.47
5. Step 5: Solve for x
   x = 4,713.47/72.99
6. Step 6: Final answer
   x = 64.58