Finding the Fourth Proportional to 9,111.52, 13,661.87 and 3,558.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.52 : 13,661.87 = 3,558.36 : x
2. Step 2: Convert to fraction form
   9,111.52/13,661.87 = 3,558.36/x
3. Step 3: Cross multiply
   9,111.52x = 13,661.87 × 3,558.36
4. Step 4: Simplify right side
   9,111.52x = 48,613,885.17
5. Step 5: Solve for x
   x = 48,613,885.17/9,111.52
6. Step 6: Final answer
   x = 5,335.43