Finding the Fourth Proportional to 8,300.55, 12,453.05 and 3,620.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.55 : 12,453.05 = 3,620.94 : x
2. Step 2: Convert to fraction form
   8,300.55/12,453.05 = 3,620.94/x
3. Step 3: Cross multiply
   8,300.55x = 12,453.05 × 3,620.94
4. Step 4: Simplify right side
   8,300.55x = 45,091,728.76
5. Step 5: Solve for x
   x = 45,091,728.76/8,300.55
6. Step 6: Final answer
   x = 5,432.38