Finding the Fourth Proportional to 12,384.03, 17,087.58 and 7,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.03 : 17,087.58 = 7,077.72 : x
2. Step 2: Convert to fraction form
   12,384.03/17,087.58 = 7,077.72/x
3. Step 3: Cross multiply
   12,384.03x = 17,087.58 × 7,077.72
4. Step 4: Simplify right side
   12,384.03x = 120,941,106.72
5. Step 5: Solve for x
   x = 120,941,106.72/12,384.03
6. Step 6: Final answer
   x = 9,765.89