Finding the Fourth Proportional to 12,520.11, 17,277.72 and 7,484.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520.11 : 17,277.72 = 7,484.09 : x
2. Step 2: Convert to fraction form
   12,520.11/17,277.72 = 7,484.09/x
3. Step 3: Cross multiply
   12,520.11x = 17,277.72 × 7,484.09
4. Step 4: Simplify right side
   12,520.11x = 129,308,011.47
5. Step 5: Solve for x
   x = 129,308,011.47/12,520.11
6. Step 6: Final answer
   x = 10,328.03