Finding the Fourth Proportional to 9,847.86, 13,589.61 and 5,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,847.86 : 13,589.61 = 5,371.50 : x
2. Step 2: Convert to fraction form
   9,847.86/13,589.61 = 5,371.50/x
3. Step 3: Cross multiply
   9,847.86x = 13,589.61 × 5,371.50
4. Step 4: Simplify right side
   9,847.86x = 72,996,590.12
5. Step 5: Solve for x
   x = 72,996,590.12/9,847.86
6. Step 6: Final answer
   x = 7,412.43