Finding the Fourth Proportional to 12,124.69, 16,726.46 and 7,089.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.69 : 16,726.46 = 7,089.12 : x
2. Step 2: Convert to fraction form
   12,124.69/16,726.46 = 7,089.12/x
3. Step 3: Cross multiply
   12,124.69x = 16,726.46 × 7,089.12
4. Step 4: Simplify right side
   12,124.69x = 118,575,935.98
5. Step 5: Solve for x
   x = 118,575,935.98/12,124.69
6. Step 6: Final answer
   x = 9,779.71