Finding the Fourth Proportional to 30,594.81, 45,892.71 and 8,408.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,594.81 : 45,892.71 = 8,408.05 : x
2. Step 2: Convert to fraction form
   30,594.81/45,892.71 = 8,408.05/x
3. Step 3: Cross multiply
   30,594.81x = 45,892.71 × 8,408.05
4. Step 4: Simplify right side
   30,594.81x = 385,868,200.32
5. Step 5: Solve for x
   x = 385,868,200.32/30,594.81
6. Step 6: Final answer
   x = 12,612.21