Finding the Fourth Proportional to 33,792.32, 50,689.20 and 10,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,792.32 : 50,689.20 = 10,418.72 : x
2. Step 2: Convert to fraction form
   33,792.32/50,689.20 = 10,418.72/x
3. Step 3: Cross multiply
   33,792.32x = 50,689.20 × 10,418.72
4. Step 4: Simplify right side
   33,792.32x = 528,116,581.82
5. Step 5: Solve for x
   x = 528,116,581.82/33,792.32
6. Step 6: Final answer
   x = 15,628.30