Finding the Fourth Proportional to 11,071.31, 16,603.35 and 3,673.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,071.31 : 16,603.35 = 3,673.78 : x
2. Step 2: Convert to fraction form
   11,071.31/16,603.35 = 3,673.78/x
3. Step 3: Cross multiply
   11,071.31x = 16,603.35 × 3,673.78
4. Step 4: Simplify right side
   11,071.31x = 60,997,055.16
5. Step 5: Solve for x
   x = 60,997,055.16/11,071.31
6. Step 6: Final answer
   x = 5,509.47