Finding the Fourth Proportional to 10,559.96, 15,843.56 and 3,988.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,559.96 : 15,843.56 = 3,988.04 : x
2. Step 2: Convert to fraction form
   10,559.96/15,843.56 = 3,988.04/x
3. Step 3: Cross multiply
   10,559.96x = 15,843.56 × 3,988.04
4. Step 4: Simplify right side
   10,559.96x = 63,184,751.02
5. Step 5: Solve for x
   x = 63,184,751.02/10,559.96
6. Step 6: Final answer
   x = 5,983.43