Finding the Fourth Proportional to 14,818.47, 22,216.17 and 7,419.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,818.47 : 22,216.17 = 7,419.12 : x
2. Step 2: Convert to fraction form
   14,818.47/22,216.17 = 7,419.12/x
3. Step 3: Cross multiply
   14,818.47x = 22,216.17 × 7,419.12
4. Step 4: Simplify right side
   14,818.47x = 164,824,431.17
5. Step 5: Solve for x
   x = 164,824,431.17/14,818.47
6. Step 6: Final answer
   x = 11,122.90