Finding the Fourth Proportional to 5,002.83, 6,900.78 and 3,140.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,002.83 : 6,900.78 = 3,140.91 : x
2. Step 2: Convert to fraction form
   5,002.83/6,900.78 = 3,140.91/x
3. Step 3: Cross multiply
   5,002.83x = 6,900.78 × 3,140.91
4. Step 4: Simplify right side
   5,002.83x = 21,674,728.91
5. Step 5: Solve for x
   x = 21,674,728.91/5,002.83
6. Step 6: Final answer
   x = 4,332.49