Finding the Fourth Proportional to 12,980.24, 17,911.50 and 7,601.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,980.24 : 17,911.50 = 7,601.84 : x
2. Step 2: Convert to fraction form
   12,980.24/17,911.50 = 7,601.84/x
3. Step 3: Cross multiply
   12,980.24x = 17,911.50 × 7,601.84
4. Step 4: Simplify right side
   12,980.24x = 136,160,357.16
5. Step 5: Solve for x
   x = 136,160,357.16/12,980.24
6. Step 6: Final answer
   x = 10,489.82