Finding the Fourth Proportional to 5,436.48, 7,497.72 and 3,665.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.48 : 7,497.72 = 3,665.76 : x
2. Step 2: Convert to fraction form
   5,436.48/7,497.72 = 3,665.76/x
3. Step 3: Cross multiply
   5,436.48x = 7,497.72 × 3,665.76
4. Step 4: Simplify right side
   5,436.48x = 27,484,842.07
5. Step 5: Solve for x
   x = 27,484,842.07/5,436.48
6. Step 6: Final answer
   x = 5,055.63