Finding the Fourth Proportional to 10,458.45, 14,432.58 and 5,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,458.45 : 14,432.58 = 5,742.72 : x
2. Step 2: Convert to fraction form
   10,458.45/14,432.58 = 5,742.72/x
3. Step 3: Cross multiply
   10,458.45x = 14,432.58 × 5,742.72
4. Step 4: Simplify right side
   10,458.45x = 82,882,265.82
5. Step 5: Solve for x
   x = 82,882,265.82/10,458.45
6. Step 6: Final answer
   x = 7,924.91