Finding the Fourth Proportional to 9,366.67, 12,927.30 and 5,387.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,366.67 : 12,927.30 = 5,387.71 : x
2. Step 2: Convert to fraction form
   9,366.67/12,927.30 = 5,387.71/x
3. Step 3: Cross multiply
   9,366.67x = 12,927.30 × 5,387.71
4. Step 4: Simplify right side
   9,366.67x = 69,648,543.48
5. Step 5: Solve for x
   x = 69,648,543.48/9,366.67
6. Step 6: Final answer
   x = 7,435.78