Finding the Fourth Proportional to 9,155.55, 13,724.07 and 3,606.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.55 : 13,724.07 = 3,606.74 : x
2. Step 2: Convert to fraction form
   9,155.55/13,724.07 = 3,606.74/x
3. Step 3: Cross multiply
   9,155.55x = 13,724.07 × 3,606.74
4. Step 4: Simplify right side
   9,155.55x = 49,499,152.23
5. Step 5: Solve for x
   x = 49,499,152.23/9,155.55
6. Step 6: Final answer
   x = 5,406.46