Finding the Fourth Proportional to 13,723.34, 18,938.16 and 7,435.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,723.34 : 18,938.16 = 7,435.71 : x
2. Step 2: Convert to fraction form
   13,723.34/18,938.16 = 7,435.71/x
3. Step 3: Cross multiply
   13,723.34x = 18,938.16 × 7,435.71
4. Step 4: Simplify right side
   13,723.34x = 140,818,665.69
5. Step 5: Solve for x
   x = 140,818,665.69/13,723.34
6. Step 6: Final answer
   x = 10,261.26