Finding the Fourth Proportional to 72.56, 109.01 and 46.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 109.01 = 46.93 : x
2. Step 2: Convert to fraction form
   72.56/109.01 = 46.93/x
3. Step 3: Cross multiply
   72.56x = 109.01 × 46.93
4. Step 4: Simplify right side
   72.56x = 5,115.69
5. Step 5: Solve for x
   x = 5,115.69/72.56
6. Step 6: Final answer
   x = 70.50