Finding the Fourth Proportional to 14,891.55, 20,520.72 and 10,630.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,891.55 : 20,520.72 = 10,630.59 : x
2. Step 2: Convert to fraction form
   14,891.55/20,520.72 = 10,630.59/x
3. Step 3: Cross multiply
   14,891.55x = 20,520.72 × 10,630.59
4. Step 4: Simplify right side
   14,891.55x = 218,147,360.82
5. Step 5: Solve for x
   x = 218,147,360.82/14,891.55
6. Step 6: Final answer
   x = 14,649.07