Finding the Fourth Proportional to 8,700.42, 12,014.56 and 5,562.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,700.42 : 12,014.56 = 5,562.08 : x
2. Step 2: Convert to fraction form
   8,700.42/12,014.56 = 5,562.08/x
3. Step 3: Cross multiply
   8,700.42x = 12,014.56 × 5,562.08
4. Step 4: Simplify right side
   8,700.42x = 66,825,943.88
5. Step 5: Solve for x
   x = 66,825,943.88/8,700.42
6. Step 6: Final answer
   x = 7,680.77