Finding the Fourth Proportional to 12,800.34, 17,664.54 and 7,423.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800.34 : 17,664.54 = 7,423.83 : x
2. Step 2: Convert to fraction form
   12,800.34/17,664.54 = 7,423.83/x
3. Step 3: Cross multiply
   12,800.34x = 17,664.54 × 7,423.83
4. Step 4: Simplify right side
   12,800.34x = 131,138,541.99
5. Step 5: Solve for x
   x = 131,138,541.99/12,800.34
6. Step 6: Final answer
   x = 10,244.93