Finding the Fourth Proportional to 11,978.61, 17,967.30 and 4,582.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,978.61 : 17,967.30 = 4,582.50 : x
2. Step 2: Convert to fraction form
   11,978.61/17,967.30 = 4,582.50/x
3. Step 3: Cross multiply
   11,978.61x = 17,967.30 × 4,582.50
4. Step 4: Simplify right side
   11,978.61x = 82,335,067.69
5. Step 5: Solve for x
   x = 82,335,067.69/11,978.61
6. Step 6: Final answer
   x = 6,873.51