Finding the Fourth Proportional to 5,055.34, 7,584.51 and 2,591.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,055.34 : 7,584.51 = 2,591.89 : x
2. Step 2: Convert to fraction form
   5,055.34/7,584.51 = 2,591.89/x
3. Step 3: Cross multiply
   5,055.34x = 7,584.51 × 2,591.89
4. Step 4: Simplify right side
   5,055.34x = 19,658,215.62
5. Step 5: Solve for x
   x = 19,658,215.62/5,055.34
6. Step 6: Final answer
   x = 3,888.60