Finding the Fourth Proportional to 9,573.86, 13,211.25 and 5,382.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,573.86 : 13,211.25 = 5,382.74 : x
2. Step 2: Convert to fraction form
   9,573.86/13,211.25 = 5,382.74/x
3. Step 3: Cross multiply
   9,573.86x = 13,211.25 × 5,382.74
4. Step 4: Simplify right side
   9,573.86x = 71,112,723.83
5. Step 5: Solve for x
   x = 71,112,723.83/9,573.86
6. Step 6: Final answer
   x = 7,427.80