Finding the Fourth Proportional to 10,318.49, 14,312.37 and 10,045.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,318.49 : 14,312.37 = 10,045.05 : x
2. Step 2: Convert to fraction form
   10,318.49/14,312.37 = 10,045.05/x
3. Step 3: Cross multiply
   10,318.49x = 14,312.37 × 10,045.05
4. Step 4: Simplify right side
   10,318.49x = 143,768,472.27
5. Step 5: Solve for x
   x = 143,768,472.27/10,318.49
6. Step 6: Final answer
   x = 13,933.09