Finding the Fourth Proportional to 22,189.17, 30,621.51 and 12,118.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,189.17 : 30,621.51 = 12,118.02 : x
2. Step 2: Convert to fraction form
   22,189.17/30,621.51 = 12,118.02/x
3. Step 3: Cross multiply
   22,189.17x = 30,621.51 × 12,118.02
4. Step 4: Simplify right side
   22,189.17x = 371,072,070.61
5. Step 5: Solve for x
   x = 371,072,070.61/22,189.17
6. Step 6: Final answer
   x = 16,723.12