Finding the Fourth Proportional to 7,867.98, 10,857.42 and 5,073.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,867.98 : 10,857.42 = 5,073.48 : x
2. Step 2: Convert to fraction form
   7,867.98/10,857.42 = 5,073.48/x
3. Step 3: Cross multiply
   7,867.98x = 10,857.42 × 5,073.48
4. Step 4: Simplify right side
   7,867.98x = 55,084,903.22
5. Step 5: Solve for x
   x = 55,084,903.22/7,867.98
6. Step 6: Final answer
   x = 7,001.15