Finding the Fourth Proportional to 12,385.46, 17,090.88 and 7,079.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.46 : 17,090.88 = 7,079.24 : x
2. Step 2: Convert to fraction form
   12,385.46/17,090.88 = 7,079.24/x
3. Step 3: Cross multiply
   12,385.46x = 17,090.88 × 7,079.24
4. Step 4: Simplify right side
   12,385.46x = 120,990,441.33
5. Step 5: Solve for x
   x = 120,990,441.33/12,385.46
6. Step 6: Final answer
   x = 9,768.75