Finding the Fourth Proportional to 5,801.61, 8,004.88 and 3,916.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,801.61 : 8,004.88 = 3,916.69 : x
2. Step 2: Convert to fraction form
   5,801.61/8,004.88 = 3,916.69/x
3. Step 3: Cross multiply
   5,801.61x = 8,004.88 × 3,916.69
4. Step 4: Simplify right side
   5,801.61x = 31,352,633.45
5. Step 5: Solve for x
   x = 31,352,633.45/5,801.61
6. Step 6: Final answer
   x = 5,404.13