Finding the Fourth Proportional to 16,978.93, 25,468.57 and 5,132.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.93 : 25,468.57 = 5,132.80 : x
2. Step 2: Convert to fraction form
   16,978.93/25,468.57 = 5,132.80/x
3. Step 3: Cross multiply
   16,978.93x = 25,468.57 × 5,132.80
4. Step 4: Simplify right side
   16,978.93x = 130,725,076.10
5. Step 5: Solve for x
   x = 130,725,076.10/16,978.93
6. Step 6: Final answer
   x = 7,699.25