Finding the Fourth Proportional to 12,222.19, 18,342.52 and 8,471.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222.19 : 18,342.52 = 8,471.86 : x
2. Step 2: Convert to fraction form
   12,222.19/18,342.52 = 8,471.86/x
3. Step 3: Cross multiply
   12,222.19x = 18,342.52 × 8,471.86
4. Step 4: Simplify right side
   12,222.19x = 155,395,194.45
5. Step 5: Solve for x
   x = 155,395,194.45/12,222.19
6. Step 6: Final answer
   x = 12,714.18