Finding the Fourth Proportional to 18,083.76, 27,124.10 and 5,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,083.76 : 27,124.10 = 5,603.50 : x
2. Step 2: Convert to fraction form
   18,083.76/27,124.10 = 5,603.50/x
3. Step 3: Cross multiply
   18,083.76x = 27,124.10 × 5,603.50
4. Step 4: Simplify right side
   18,083.76x = 151,989,985.72
5. Step 5: Solve for x
   x = 151,989,985.72/18,083.76
6. Step 6: Final answer
   x = 8,404.78