Finding the Fourth Proportional to 9,291.52, 12,826.31 and 5,707.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,291.52 : 12,826.31 = 5,707.06 : x
2. Step 2: Convert to fraction form
   9,291.52/12,826.31 = 5,707.06/x
3. Step 3: Cross multiply
   9,291.52x = 12,826.31 × 5,707.06
4. Step 4: Simplify right side
   9,291.52x = 73,200,460.15
5. Step 5: Solve for x
   x = 73,200,460.15/9,291.52
6. Step 6: Final answer
   x = 7,878.20