Finding the Fourth Proportional to 22,152.48, 30,570.32 and 12,216.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,152.48 : 30,570.32 = 12,216.48 : x
2. Step 2: Convert to fraction form
   22,152.48/30,570.32 = 12,216.48/x
3. Step 3: Cross multiply
   22,152.48x = 30,570.32 × 12,216.48
4. Step 4: Simplify right side
   22,152.48x = 373,461,702.87
5. Step 5: Solve for x
   x = 373,461,702.87/22,152.48
6. Step 6: Final answer
   x = 16,858.69