Finding the Fourth Proportional to 9,377.04, 12,938.16 and 5,601.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,377.04 : 12,938.16 = 5,601.60 : x
2. Step 2: Convert to fraction form
   9,377.04/12,938.16 = 5,601.60/x
3. Step 3: Cross multiply
   9,377.04x = 12,938.16 × 5,601.60
4. Step 4: Simplify right side
   9,377.04x = 72,474,397.06
5. Step 5: Solve for x
   x = 72,474,397.06/9,377.04
6. Step 6: Final answer
   x = 7,728.92