Finding the Fourth Proportional to 8,704.32, 12,012.88 and 5,167.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,704.32 : 12,012.88 = 5,167.86 : x
2. Step 2: Convert to fraction form
   8,704.32/12,012.88 = 5,167.86/x
3. Step 3: Cross multiply
   8,704.32x = 12,012.88 × 5,167.86
4. Step 4: Simplify right side
   8,704.32x = 62,080,882.04
5. Step 5: Solve for x
   x = 62,080,882.04/8,704.32
6. Step 6: Final answer
   x = 7,132.19