Finding the Fourth Proportional to 9,317.72, 12,858.56 and 5,126

Step by Step Solution

1. Step 1: Write the proportion equation
   9,317.72 : 12,858.56 = 5,126 : x
2. Step 2: Convert to fraction form
   9,317.72/12,858.56 = 5,126/x
3. Step 3: Cross multiply
   9,317.72x = 12,858.56 × 5,126
4. Step 4: Simplify right side
   9,317.72x = 65,912,978.56
5. Step 5: Solve for x
   x = 65,912,978.56/9,317.72
6. Step 6: Final answer
   x = 7,073.94