Finding the Fourth Proportional to 11,847.86, 16,355.28 and 7,069.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,847.86 : 16,355.28 = 7,069.47 : x
2. Step 2: Convert to fraction form
   11,847.86/16,355.28 = 7,069.47/x
3. Step 3: Cross multiply
   11,847.86x = 16,355.28 × 7,069.47
4. Step 4: Simplify right side
   11,847.86x = 115,623,161.30
5. Step 5: Solve for x
   x = 115,623,161.30/11,847.86
6. Step 6: Final answer
   x = 9,758.99