Finding the Fourth Proportional to 12,073.20, 16,663.34 and 7,874.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.20 : 16,663.34 = 7,874.16 : x
2. Step 2: Convert to fraction form
   12,073.20/16,663.34 = 7,874.16/x
3. Step 3: Cross multiply
   12,073.20x = 16,663.34 × 7,874.16
4. Step 4: Simplify right side
   12,073.20x = 131,209,805.29
5. Step 5: Solve for x
   x = 131,209,805.29/12,073.20
6. Step 6: Final answer
   x = 10,867.86