Finding the Fourth Proportional to 12,943.72, 17,861.70 and 7,356.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943.72 : 17,861.70 = 7,356.52 : x
2. Step 2: Convert to fraction form
   12,943.72/17,861.70 = 7,356.52/x
3. Step 3: Cross multiply
   12,943.72x = 17,861.70 × 7,356.52
4. Step 4: Simplify right side
   12,943.72x = 131,399,953.28
5. Step 5: Solve for x
   x = 131,399,953.28/12,943.72
6. Step 6: Final answer
   x = 10,151.64