Finding the Fourth Proportional to 13,042.01, 19,562.69 and 7,124.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,042.01 : 19,562.69 = 7,124.65 : x
2. Step 2: Convert to fraction form
   13,042.01/19,562.69 = 7,124.65/x
3. Step 3: Cross multiply
   13,042.01x = 19,562.69 × 7,124.65
4. Step 4: Simplify right side
   13,042.01x = 139,377,288.21
5. Step 5: Solve for x
   x = 139,377,288.21/13,042.01
6. Step 6: Final answer
   x = 10,686.79