Finding the Fourth Proportional to 8,700.99, 12,007.27 and 4,872.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,700.99 : 12,007.27 = 4,872.59 : x
2. Step 2: Convert to fraction form
   8,700.99/12,007.27 = 4,872.59/x
3. Step 3: Cross multiply
   8,700.99x = 12,007.27 × 4,872.59
4. Step 4: Simplify right side
   8,700.99x = 58,506,494.81
5. Step 5: Solve for x
   x = 58,506,494.81/8,700.99
6. Step 6: Final answer
   x = 6,724.12