Finding the Fourth Proportional to 8,300.72, 12,451.80 and 4,405.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.72 : 12,451.80 = 4,405.04 : x
2. Step 2: Convert to fraction form
   8,300.72/12,451.80 = 4,405.04/x
3. Step 3: Cross multiply
   8,300.72x = 12,451.80 × 4,405.04
4. Step 4: Simplify right side
   8,300.72x = 54,850,677.07
5. Step 5: Solve for x
   x = 54,850,677.07/8,300.72
6. Step 6: Final answer
   x = 6,607.94