Finding the Fourth Proportional to 72.50, 108.77 and 46.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72.50 : 108.77 = 46.46 : x
2. Step 2: Convert to fraction form
   72.50/108.77 = 46.46/x
3. Step 3: Cross multiply
   72.50x = 108.77 × 46.46
4. Step 4: Simplify right side
   72.50x = 5,053.45
5. Step 5: Solve for x
   x = 5,053.45/72.50
6. Step 6: Final answer
   x = 69.70