Finding the Fourth Proportional to 33,402.30, 46,072.98 and 21,480.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,402.30 : 46,072.98 = 21,480.72 : x
2. Step 2: Convert to fraction form
   33,402.30/46,072.98 = 21,480.72/x
3. Step 3: Cross multiply
   33,402.30x = 46,072.98 × 21,480.72
4. Step 4: Simplify right side
   33,402.30x = 989,680,782.95
5. Step 5: Solve for x
   x = 989,680,782.95/33,402.30
6. Step 6: Final answer
   x = 29,629.12