Finding the Fourth Proportional to 12,905.91, 17,810.37 and 7,241.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,905.91 : 17,810.37 = 7,241.94 : x
2. Step 2: Convert to fraction form
   12,905.91/17,810.37 = 7,241.94/x
3. Step 3: Cross multiply
   12,905.91x = 17,810.37 × 7,241.94
4. Step 4: Simplify right side
   12,905.91x = 128,981,630.92
5. Step 5: Solve for x
   x = 128,981,630.92/12,905.91
6. Step 6: Final answer
   x = 9,994.00