Finding the Fourth Proportional to 9,137.47, 13,625.98 and 9,054.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,137.47 : 13,625.98 = 9,054.31 : x
2. Step 2: Convert to fraction form
   9,137.47/13,625.98 = 9,054.31/x
3. Step 3: Cross multiply
   9,137.47x = 13,625.98 × 9,054.31
4. Step 4: Simplify right side
   9,137.47x = 123,373,846.97
5. Step 5: Solve for x
   x = 123,373,846.97/9,137.47
6. Step 6: Final answer
   x = 13,501.97