Finding the Fourth Proportional to 10,700.47, 14,770.71 and 9,579.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,700.47 : 14,770.71 = 9,579.33 : x
2. Step 2: Convert to fraction form
   10,700.47/14,770.71 = 9,579.33/x
3. Step 3: Cross multiply
   10,700.47x = 14,770.71 × 9,579.33
4. Step 4: Simplify right side
   10,700.47x = 141,493,505.42
5. Step 5: Solve for x
   x = 141,493,505.42/10,700.47
6. Step 6: Final answer
   x = 13,223.11