Finding the Fourth Proportional to 10,627.21, 14,665.15 and 5,911.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,627.21 : 14,665.15 = 5,911.39 : x
2. Step 2: Convert to fraction form
   10,627.21/14,665.15 = 5,911.39/x
3. Step 3: Cross multiply
   10,627.21x = 14,665.15 × 5,911.39
4. Step 4: Simplify right side
   10,627.21x = 86,691,421.06
5. Step 5: Solve for x
   x = 86,691,421.06/10,627.21
6. Step 6: Final answer
   x = 8,157.50