Finding the Fourth Proportional to 12,061.28, 18,092.16 and 7,927.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.28 : 18,092.16 = 7,927.64 : x
2. Step 2: Convert to fraction form
   12,061.28/18,092.16 = 7,927.64/x
3. Step 3: Cross multiply
   12,061.28x = 18,092.16 × 7,927.64
4. Step 4: Simplify right side
   12,061.28x = 143,428,131.30
5. Step 5: Solve for x
   x = 143,428,131.30/12,061.28
6. Step 6: Final answer
   x = 11,891.62