Finding the Fourth Proportional to 12,901.47, 17,802.77 and 7,234.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.47 : 17,802.77 = 7,234.89 : x
2. Step 2: Convert to fraction form
   12,901.47/17,802.77 = 7,234.89/x
3. Step 3: Cross multiply
   12,901.47x = 17,802.77 × 7,234.89
4. Step 4: Simplify right side
   12,901.47x = 128,801,046.47
5. Step 5: Solve for x
   x = 128,801,046.47/12,901.47
6. Step 6: Final answer
   x = 9,983.44