Finding the Fourth Proportional to 16,978.31, 25,460.98 and 9,182.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.31 : 25,460.98 = 9,182.87 : x
2. Step 2: Convert to fraction form
   16,978.31/25,460.98 = 9,182.87/x
3. Step 3: Cross multiply
   16,978.31x = 25,460.98 × 9,182.87
4. Step 4: Simplify right side
   16,978.31x = 233,804,719.15
5. Step 5: Solve for x
   x = 233,804,719.15/16,978.31
6. Step 6: Final answer
   x = 13,770.79