Finding the Fourth Proportional to 72.14, 99.48 and 53.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72.14 : 99.48 = 53.69 : x
2. Step 2: Convert to fraction form
   72.14/99.48 = 53.69/x
3. Step 3: Cross multiply
   72.14x = 99.48 × 53.69
4. Step 4: Simplify right side
   72.14x = 5,340.76
5. Step 5: Solve for x
   x = 5,340.76/72.14
6. Step 6: Final answer
   x = 74.03