Finding the Fourth Proportional to 22,418.64, 33,657.72 and 19,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,418.64 : 33,657.72 = 19,152.72 : x
2. Step 2: Convert to fraction form
   22,418.64/33,657.72 = 19,152.72/x
3. Step 3: Cross multiply
   22,418.64x = 33,657.72 × 19,152.72
4. Step 4: Simplify right side
   22,418.64x = 644,636,887.00
5. Step 5: Solve for x
   x = 644,636,887.00/22,418.64
6. Step 6: Final answer
   x = 28,754.50