Finding the Fourth Proportional to 74.87, 111.86 and 62.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74.87 : 111.86 = 62.72 : x
2. Step 2: Convert to fraction form
   74.87/111.86 = 62.72/x
3. Step 3: Cross multiply
   74.87x = 111.86 × 62.72
4. Step 4: Simplify right side
   74.87x = 7,015.83
5. Step 5: Solve for x
   x = 7,015.83/74.87
6. Step 6: Final answer
   x = 93.70