Finding the Fourth Proportional to 12,047.46, 18,076.65 and 7,126.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.46 : 18,076.65 = 7,126.71 : x
2. Step 2: Convert to fraction form
   12,047.46/18,076.65 = 7,126.71/x
3. Step 3: Cross multiply
   12,047.46x = 18,076.65 × 7,126.71
4. Step 4: Simplify right side
   12,047.46x = 128,827,042.32
5. Step 5: Solve for x
   x = 128,827,042.32/12,047.46
6. Step 6: Final answer
   x = 10,693.29