Finding the Fourth Proportional to 12,385.68, 17,092.76 and 7,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.68 : 17,092.76 = 7,080.50 : x
2. Step 2: Convert to fraction form
   12,385.68/17,092.76 = 7,080.50/x
3. Step 3: Cross multiply
   12,385.68x = 17,092.76 × 7,080.50
4. Step 4: Simplify right side
   12,385.68x = 121,025,219.42
5. Step 5: Solve for x
   x = 121,025,219.42/12,385.68
6. Step 6: Final answer
   x = 9,771.38