Finding the Fourth Proportional to 12,765.56, 17,615.04 and 7,100.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,765.56 : 17,615.04 = 7,100.24 : x
2. Step 2: Convert to fraction form
   12,765.56/17,615.04 = 7,100.24/x
3. Step 3: Cross multiply
   12,765.56x = 17,615.04 × 7,100.24
4. Step 4: Simplify right side
   12,765.56x = 125,071,011.61
5. Step 5: Solve for x
   x = 125,071,011.61/12,765.56
6. Step 6: Final answer
   x = 9,797.53