Finding the Fourth Proportional to 12,059.79, 16,642.73 and 7,279.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,059.79 : 16,642.73 = 7,279.74 : x
2. Step 2: Convert to fraction form
   12,059.79/16,642.73 = 7,279.74/x
3. Step 3: Cross multiply
   12,059.79x = 16,642.73 × 7,279.74
4. Step 4: Simplify right side
   12,059.79x = 121,154,747.29
5. Step 5: Solve for x
   x = 121,154,747.29/12,059.79
6. Step 6: Final answer
   x = 10,046.17