Finding the Fourth Proportional to 21,162.63, 29,181.69 and 17,842.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,162.63 : 29,181.69 = 17,842.05 : x
2. Step 2: Convert to fraction form
   21,162.63/29,181.69 = 17,842.05/x
3. Step 3: Cross multiply
   21,162.63x = 29,181.69 × 17,842.05
4. Step 4: Simplify right side
   21,162.63x = 520,661,172.06
5. Step 5: Solve for x
   x = 520,661,172.06/21,162.63
6. Step 6: Final answer
   x = 24,602.86