Finding the Fourth Proportional to 17,200.10, 23,737.09 and 12,943.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,200.10 : 23,737.09 = 12,943.50 : x
2. Step 2: Convert to fraction form
   17,200.10/23,737.09 = 12,943.50/x
3. Step 3: Cross multiply
   17,200.10x = 23,737.09 × 12,943.50
4. Step 4: Simplify right side
   17,200.10x = 307,241,024.42
5. Step 5: Solve for x
   x = 307,241,024.42/17,200.10
6. Step 6: Final answer
   x = 17,862.75