Finding the Fourth Proportional to 10,629.36, 14,667.78 and 5,913.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,629.36 : 14,667.78 = 5,913.12 : x
2. Step 2: Convert to fraction form
   10,629.36/14,667.78 = 5,913.12/x
3. Step 3: Cross multiply
   10,629.36x = 14,667.78 × 5,913.12
4. Step 4: Simplify right side
   10,629.36x = 86,732,343.27
5. Step 5: Solve for x
   x = 86,732,343.27/10,629.36
6. Step 6: Final answer
   x = 8,159.70