Finding the Fourth Proportional to 21,583.93, 32,356.71 and 8,433.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,583.93 : 32,356.71 = 8,433.31 : x
2. Step 2: Convert to fraction form
   21,583.93/32,356.71 = 8,433.31/x
3. Step 3: Cross multiply
   21,583.93x = 32,356.71 × 8,433.31
4. Step 4: Simplify right side
   21,583.93x = 272,874,166.01
5. Step 5: Solve for x
   x = 272,874,166.01/21,583.93
6. Step 6: Final answer
   x = 12,642.47