Finding the Fourth Proportional to 9,326.69, 12,870.68 and 5,347.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.69 : 12,870.68 = 5,347.56 : x
2. Step 2: Convert to fraction form
   9,326.69/12,870.68 = 5,347.56/x
3. Step 3: Cross multiply
   9,326.69x = 12,870.68 × 5,347.56
4. Step 4: Simplify right side
   9,326.69x = 68,826,755.07
5. Step 5: Solve for x
   x = 68,826,755.07/9,326.69
6. Step 6: Final answer
   x = 7,379.55