Finding the Fourth Proportional to 8,743.86, 12,061.17 and 5,387.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,743.86 : 12,061.17 = 5,387.94 : x
2. Step 2: Convert to fraction form
   8,743.86/12,061.17 = 5,387.94/x
3. Step 3: Cross multiply
   8,743.86x = 12,061.17 × 5,387.94
4. Step 4: Simplify right side
   8,743.86x = 64,984,860.29
5. Step 5: Solve for x
   x = 64,984,860.29/8,743.86
6. Step 6: Final answer
   x = 7,432.06