Finding the Fourth Proportional to 10,039.56, 15,044.76 and 7,123.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,039.56 : 15,044.76 = 7,123.56 : x
2. Step 2: Convert to fraction form
   10,039.56/15,044.76 = 7,123.56/x
3. Step 3: Cross multiply
   10,039.56x = 15,044.76 × 7,123.56
4. Step 4: Simplify right side
   10,039.56x = 107,172,250.55
5. Step 5: Solve for x
   x = 107,172,250.55/10,039.56
6. Step 6: Final answer
   x = 10,674.99