Finding the Fourth Proportional to 17,457, 24,081.30 and 12,142.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,457 : 24,081.30 = 12,142.58 : x
2. Step 2: Convert to fraction form
   17,457/24,081.30 = 12,142.58/x
3. Step 3: Cross multiply
   17,457x = 24,081.30 × 12,142.58
4. Step 4: Simplify right side
   17,457x = 292,409,111.75
5. Step 5: Solve for x
   x = 292,409,111.75/17,457
6. Step 6: Final answer
   x = 16,750.25