Finding the Fourth Proportional to 10,480.62, 14,457.67 and 7,958.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,480.62 : 14,457.67 = 7,958.55 : x
2. Step 2: Convert to fraction form
   10,480.62/14,457.67 = 7,958.55/x
3. Step 3: Cross multiply
   10,480.62x = 14,457.67 × 7,958.55
4. Step 4: Simplify right side
   10,480.62x = 115,062,089.58
5. Step 5: Solve for x
   x = 115,062,089.58/10,480.62
6. Step 6: Final answer
   x = 10,978.56