Finding the Fourth Proportional to 5,061.65, 7,591.85 and 2,139.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.65 : 7,591.85 = 2,139.57 : x
2. Step 2: Convert to fraction form
   5,061.65/7,591.85 = 2,139.57/x
3. Step 3: Cross multiply
   5,061.65x = 7,591.85 × 2,139.57
4. Step 4: Simplify right side
   5,061.65x = 16,243,283.81
5. Step 5: Solve for x
   x = 16,243,283.81/5,061.65
6. Step 6: Final answer
   x = 3,209.09