Finding the Fourth Proportional to 12,799.58, 17,663.23 and 7,134.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.58 : 17,663.23 = 7,134.54 : x
2. Step 2: Convert to fraction form
   12,799.58/17,663.23 = 7,134.54/x
3. Step 3: Cross multiply
   12,799.58x = 17,663.23 × 7,134.54
4. Step 4: Simplify right side
   12,799.58x = 126,018,963.65
5. Step 5: Solve for x
   x = 126,018,963.65/12,799.58
6. Step 6: Final answer
   x = 9,845.56