Finding the Fourth Proportional to 7,287.15, 10,056.33 and 4,143.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,287.15 : 10,056.33 = 4,143.34 : x
2. Step 2: Convert to fraction form
   7,287.15/10,056.33 = 4,143.34/x
3. Step 3: Cross multiply
   7,287.15x = 10,056.33 × 4,143.34
4. Step 4: Simplify right side
   7,287.15x = 41,666,781.12
5. Step 5: Solve for x
   x = 41,666,781.12/7,287.15
6. Step 6: Final answer
   x = 5,717.84