Finding the Fourth Proportional to 4,700.33, 7,047.76 and 3,142.09

Step by Step Solution

1. Step 1: Write the proportion equation
   4,700.33 : 7,047.76 = 3,142.09 : x
2. Step 2: Convert to fraction form
   4,700.33/7,047.76 = 3,142.09/x
3. Step 3: Cross multiply
   4,700.33x = 7,047.76 × 3,142.09
4. Step 4: Simplify right side
   4,700.33x = 22,144,696.22
5. Step 5: Solve for x
   x = 22,144,696.22/4,700.33
6. Step 6: Final answer
   x = 4,711.31