Finding the Fourth Proportional to 17,158.10, 23,646.06 and 12,369.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,158.10 : 23,646.06 = 12,369.72 : x
2. Step 2: Convert to fraction form
   17,158.10/23,646.06 = 12,369.72/x
3. Step 3: Cross multiply
   17,158.10x = 23,646.06 × 12,369.72
4. Step 4: Simplify right side
   17,158.10x = 292,495,141.30
5. Step 5: Solve for x
   x = 292,495,141.30/17,158.10
6. Step 6: Final answer
   x = 17,047.06