Finding the Fourth Proportional to 10,707.49, 16,061.24 and 4,860

Step by Step Solution

1. Step 1: Write the proportion equation
   10,707.49 : 16,061.24 = 4,860 : x
2. Step 2: Convert to fraction form
   10,707.49/16,061.24 = 4,860/x
3. Step 3: Cross multiply
   10,707.49x = 16,061.24 × 4,860
4. Step 4: Simplify right side
   10,707.49x = 78,057,611.21
5. Step 5: Solve for x
   x = 78,057,611.21/10,707.49
6. Step 6: Final answer
   x = 7,290.00