Finding the Fourth Proportional to 11,695.24, 16,139.82 and 6,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,695.24 : 16,139.82 = 6,978.88 : x
2. Step 2: Convert to fraction form
   11,695.24/16,139.82 = 6,978.88/x
3. Step 3: Cross multiply
   11,695.24x = 16,139.82 × 6,978.88
4. Step 4: Simplify right side
   11,695.24x = 112,637,867.00
5. Step 5: Solve for x
   x = 112,637,867.00/11,695.24
6. Step 6: Final answer
   x = 9,631.09