Finding the Fourth Proportional to 9,507.10, 13,120.29 and 5,731.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.10 : 13,120.29 = 5,731.46 : x
2. Step 2: Convert to fraction form
   9,507.10/13,120.29 = 5,731.46/x
3. Step 3: Cross multiply
   9,507.10x = 13,120.29 × 5,731.46
4. Step 4: Simplify right side
   9,507.10x = 75,198,417.32
5. Step 5: Solve for x
   x = 75,198,417.32/9,507.10
6. Step 6: Final answer
   x = 7,909.71