Finding the Fourth Proportional to 12,385.42, 17,087.70 and 7,076.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.42 : 17,087.70 = 7,076.48 : x
2. Step 2: Convert to fraction form
   12,385.42/17,087.70 = 7,076.48/x
3. Step 3: Cross multiply
   12,385.42x = 17,087.70 × 7,076.48
4. Step 4: Simplify right side
   12,385.42x = 120,920,767.30
5. Step 5: Solve for x
   x = 120,920,767.30/12,385.42
6. Step 6: Final answer
   x = 9,763.16