Finding the Fourth Proportional to 5,131.80, 7,700.13 and 2,942.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.80 : 7,700.13 = 2,942.37 : x
2. Step 2: Convert to fraction form
   5,131.80/7,700.13 = 2,942.37/x
3. Step 3: Cross multiply
   5,131.80x = 7,700.13 × 2,942.37
4. Step 4: Simplify right side
   5,131.80x = 22,656,631.51
5. Step 5: Solve for x
   x = 22,656,631.51/5,131.80
6. Step 6: Final answer
   x = 4,414.95