Finding the Fourth Proportional to 10,528.50, 15,795.18 and 3,603

Step by Step Solution

1. Step 1: Write the proportion equation
   10,528.50 : 15,795.18 = 3,603 : x
2. Step 2: Convert to fraction form
   10,528.50/15,795.18 = 3,603/x
3. Step 3: Cross multiply
   10,528.50x = 15,795.18 × 3,603
4. Step 4: Simplify right side
   10,528.50x = 56,910,033.54
5. Step 5: Solve for x
   x = 56,910,033.54/10,528.50
6. Step 6: Final answer
   x = 5,405.33