Finding the Fourth Proportional to 9,085.72, 12,538.74 and 5,548.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.72 : 12,538.74 = 5,548.36 : x
2. Step 2: Convert to fraction form
   9,085.72/12,538.74 = 5,548.36/x
3. Step 3: Cross multiply
   9,085.72x = 12,538.74 × 5,548.36
4. Step 4: Simplify right side
   9,085.72x = 69,569,443.47
5. Step 5: Solve for x
   x = 69,569,443.47/9,085.72
6. Step 6: Final answer
   x = 7,657.01