Finding the Fourth Proportional to 12,967.86, 17,895.60 and 7,378.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.86 : 17,895.60 = 7,378.86 : x
2. Step 2: Convert to fraction form
   12,967.86/17,895.60 = 7,378.86/x
3. Step 3: Cross multiply
   12,967.86x = 17,895.60 × 7,378.86
4. Step 4: Simplify right side
   12,967.86x = 132,049,127.02
5. Step 5: Solve for x
   x = 132,049,127.02/12,967.86
6. Step 6: Final answer
   x = 10,182.80