Finding the Fourth Proportional to 10,131.88, 15,204.60 and 3,558.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.88 : 15,204.60 = 3,558.12 : x
2. Step 2: Convert to fraction form
   10,131.88/15,204.60 = 3,558.12/x
3. Step 3: Cross multiply
   10,131.88x = 15,204.60 × 3,558.12
4. Step 4: Simplify right side
   10,131.88x = 54,099,791.35
5. Step 5: Solve for x
   x = 54,099,791.35/10,131.88
6. Step 6: Final answer
   x = 5,339.56