Finding the Fourth Proportional to 8,758.14, 12,089.72 and 5,404.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.14 : 12,089.72 = 5,404.16 : x
2. Step 2: Convert to fraction form
   8,758.14/12,089.72 = 5,404.16/x
3. Step 3: Cross multiply
   8,758.14x = 12,089.72 × 5,404.16
4. Step 4: Simplify right side
   8,758.14x = 65,334,781.24
5. Step 5: Solve for x
   x = 65,334,781.24/8,758.14
6. Step 6: Final answer
   x = 7,459.89