Finding the Fourth Proportional to 22,109.10, 30,503.07 and 13,602.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,109.10 : 30,503.07 = 13,602.48 : x
2. Step 2: Convert to fraction form
   22,109.10/30,503.07 = 13,602.48/x
3. Step 3: Cross multiply
   22,109.10x = 30,503.07 × 13,602.48
4. Step 4: Simplify right side
   22,109.10x = 414,917,399.61
5. Step 5: Solve for x
   x = 414,917,399.61/22,109.10
6. Step 6: Final answer
   x = 18,766.82