Finding the Fourth Proportional to 5,439.57, 7,506.59 and 3,081.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,439.57 : 7,506.59 = 3,081.93 : x
2. Step 2: Convert to fraction form
   5,439.57/7,506.59 = 3,081.93/x
3. Step 3: Cross multiply
   5,439.57x = 7,506.59 × 3,081.93
4. Step 4: Simplify right side
   5,439.57x = 23,134,769.51
5. Step 5: Solve for x
   x = 23,134,769.51/5,439.57
6. Step 6: Final answer
   x = 4,253.05