Finding the Fourth Proportional to 9,085.25, 12,539.37 and 5,106.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.25 : 12,539.37 = 5,106.36 : x
2. Step 2: Convert to fraction form
   9,085.25/12,539.37 = 5,106.36/x
3. Step 3: Cross multiply
   9,085.25x = 12,539.37 × 5,106.36
4. Step 4: Simplify right side
   9,085.25x = 64,030,537.39
5. Step 5: Solve for x
   x = 64,030,537.39/9,085.25
6. Step 6: Final answer
   x = 7,047.75