Finding the Fourth Proportional to 12,182.17, 18,262.29 and 4,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.17 : 18,262.29 = 4,385.50 : x
2. Step 2: Convert to fraction form
   12,182.17/18,262.29 = 4,385.50/x
3. Step 3: Cross multiply
   12,182.17x = 18,262.29 × 4,385.50
4. Step 4: Simplify right side
   12,182.17x = 80,089,272.80
5. Step 5: Solve for x
   x = 80,089,272.80/12,182.17
6. Step 6: Final answer
   x = 6,574.30