Finding the Fourth Proportional to 10,131.28, 13,982.22 and 5,656.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.28 : 13,982.22 = 5,656.57 : x
2. Step 2: Convert to fraction form
   10,131.28/13,982.22 = 5,656.57/x
3. Step 3: Cross multiply
   10,131.28x = 13,982.22 × 5,656.57
4. Step 4: Simplify right side
   10,131.28x = 79,091,406.19
5. Step 5: Solve for x
   x = 79,091,406.19/10,131.28
6. Step 6: Final answer
   x = 7,806.65