Finding the Fourth Proportional to 22,619.94, 31,216.50 and 15,054.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,619.94 : 31,216.50 = 15,054.18 : x
2. Step 2: Convert to fraction form
   22,619.94/31,216.50 = 15,054.18/x
3. Step 3: Cross multiply
   22,619.94x = 31,216.50 × 15,054.18
4. Step 4: Simplify right side
   22,619.94x = 469,938,809.97
5. Step 5: Solve for x
   x = 469,938,809.97/22,619.94
6. Step 6: Final answer
   x = 20,775.42