Finding the Fourth Proportional to 9,060.94, 12,485.37 and 7,285.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,060.94 : 12,485.37 = 7,285.42 : x
2. Step 2: Convert to fraction form
   9,060.94/12,485.37 = 7,285.42/x
3. Step 3: Cross multiply
   9,060.94x = 12,485.37 × 7,285.42
4. Step 4: Simplify right side
   9,060.94x = 90,961,164.31
5. Step 5: Solve for x
   x = 90,961,164.31/9,060.94
6. Step 6: Final answer
   x = 10,038.82