Finding the Fourth Proportional to 16,988.06, 25,487.56 and 7,124.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,988.06 : 25,487.56 = 7,124.69 : x
2. Step 2: Convert to fraction form
   16,988.06/25,487.56 = 7,124.69/x
3. Step 3: Cross multiply
   16,988.06x = 25,487.56 × 7,124.69
4. Step 4: Simplify right side
   16,988.06x = 181,590,963.86
5. Step 5: Solve for x
   x = 181,590,963.86/16,988.06
6. Step 6: Final answer
   x = 10,689.33