Finding the Fourth Proportional to 10,997.78, 16,495.11 and 3,602.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,997.78 : 16,495.11 = 3,602.54 : x
2. Step 2: Convert to fraction form
   10,997.78/16,495.11 = 3,602.54/x
3. Step 3: Cross multiply
   10,997.78x = 16,495.11 × 3,602.54
4. Step 4: Simplify right side
   10,997.78x = 59,424,334.82
5. Step 5: Solve for x
   x = 59,424,334.82/10,997.78
6. Step 6: Final answer
   x = 5,403.31