Finding the Fourth Proportional to 9,112.50, 13,586.89 and 8,946.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.50 : 13,586.89 = 8,946.42 : x
2. Step 2: Convert to fraction form
   9,112.50/13,586.89 = 8,946.42/x
3. Step 3: Cross multiply
   9,112.50x = 13,586.89 × 8,946.42
4. Step 4: Simplify right side
   9,112.50x = 121,554,082.53
5. Step 5: Solve for x
   x = 121,554,082.53/9,112.50
6. Step 6: Final answer
   x = 13,339.27