Finding the Fourth Proportional to 10,628.82, 14,667.48 and 5,913

Step by Step Solution

1. Step 1: Write the proportion equation
   10,628.82 : 14,667.48 = 5,913 : x
2. Step 2: Convert to fraction form
   10,628.82/14,667.48 = 5,913/x
3. Step 3: Cross multiply
   10,628.82x = 14,667.48 × 5,913
4. Step 4: Simplify right side
   10,628.82x = 86,728,809.24
5. Step 5: Solve for x
   x = 86,728,809.24/10,628.82
6. Step 6: Final answer
   x = 8,159.78