Finding the Fourth Proportional to 9,317.86, 12,858.74 and 5,338.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,317.86 : 12,858.74 = 5,338.88 : x
2. Step 2: Convert to fraction form
   9,317.86/12,858.74 = 5,338.88/x
3. Step 3: Cross multiply
   9,317.86x = 12,858.74 × 5,338.88
4. Step 4: Simplify right side
   9,317.86x = 68,651,315.31
5. Step 5: Solve for x
   x = 68,651,315.31/9,317.86
6. Step 6: Final answer
   x = 7,367.71