Finding the Fourth Proportional to 21,181.96, 31,783.38 and 14,981.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,181.96 : 31,783.38 = 14,981.82 : x
2. Step 2: Convert to fraction form
   21,181.96/31,783.38 = 14,981.82/x
3. Step 3: Cross multiply
   21,181.96x = 31,783.38 × 14,981.82
4. Step 4: Simplify right side
   21,181.96x = 476,172,878.15
5. Step 5: Solve for x
   x = 476,172,878.15/21,181.96
6. Step 6: Final answer
   x = 22,480.11