Finding the Fourth Proportional to 12,385.12, 17,091.76 and 7,080.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.12 : 17,091.76 = 7,080.43 : x
2. Step 2: Convert to fraction form
   12,385.12/17,091.76 = 7,080.43/x
3. Step 3: Cross multiply
   12,385.12x = 17,091.76 × 7,080.43
4. Step 4: Simplify right side
   12,385.12x = 121,017,010.26
5. Step 5: Solve for x
   x = 121,017,010.26/12,385.12
6. Step 6: Final answer
   x = 9,771.16