Finding the Fourth Proportional to 5,381.88, 7,423.02 and 4,055.64

Step by Step Solution

1. Step 1: Write the proportion equation
   5,381.88 : 7,423.02 = 4,055.64 : x
2. Step 2: Convert to fraction form
   5,381.88/7,423.02 = 4,055.64/x
3. Step 3: Cross multiply
   5,381.88x = 7,423.02 × 4,055.64
4. Step 4: Simplify right side
   5,381.88x = 30,105,096.83
5. Step 5: Solve for x
   x = 30,105,096.83/5,381.88
6. Step 6: Final answer
   x = 5,593.79