Finding the Fourth Proportional to 21,194.52, 31,791.76 and 5,612.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,194.52 : 31,791.76 = 5,612.16 : x
2. Step 2: Convert to fraction form
   21,194.52/31,791.76 = 5,612.16/x
3. Step 3: Cross multiply
   21,194.52x = 31,791.76 × 5,612.16
4. Step 4: Simplify right side
   21,194.52x = 178,420,443.80
5. Step 5: Solve for x
   x = 178,420,443.80/21,194.52
6. Step 6: Final answer
   x = 8,418.23