Finding the Fourth Proportional to 12,801.23, 17,663.54 and 7,134.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801.23 : 17,663.54 = 7,134.74 : x
2. Step 2: Convert to fraction form
   12,801.23/17,663.54 = 7,134.74/x
3. Step 3: Cross multiply
   12,801.23x = 17,663.54 × 7,134.74
4. Step 4: Simplify right side
   12,801.23x = 126,024,694.90
5. Step 5: Solve for x
   x = 126,024,694.90/12,801.23
6. Step 6: Final answer
   x = 9,844.74