Finding the Fourth Proportional to 13,710.56, 18,920.88 and 7,741.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,710.56 : 18,920.88 = 7,741.89 : x
2. Step 2: Convert to fraction form
   13,710.56/18,920.88 = 7,741.89/x
3. Step 3: Cross multiply
   13,710.56x = 18,920.88 × 7,741.89
4. Step 4: Simplify right side
   13,710.56x = 146,483,371.66
5. Step 5: Solve for x
   x = 146,483,371.66/13,710.56
6. Step 6: Final answer
   x = 10,683.99