Finding the Fourth Proportional to 12,312.05, 18,441.55 and 8,341.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,312.05 : 18,441.55 = 8,341.53 : x
2. Step 2: Convert to fraction form
   12,312.05/18,441.55 = 8,341.53/x
3. Step 3: Cross multiply
   12,312.05x = 18,441.55 × 8,341.53
4. Step 4: Simplify right side
   12,312.05x = 153,830,699.48
5. Step 5: Solve for x
   x = 153,830,699.48/12,312.05
6. Step 6: Final answer
   x = 12,494.32