Finding the Fourth Proportional to 14,978.31, 22,448.40 and 7,961.68

Step by Step Solution

1. Step 1: Write the proportion equation
   14,978.31 : 22,448.40 = 7,961.68 : x
2. Step 2: Convert to fraction form
   14,978.31/22,448.40 = 7,961.68/x
3. Step 3: Cross multiply
   14,978.31x = 22,448.40 × 7,961.68
4. Step 4: Simplify right side
   14,978.31x = 178,726,977.31
5. Step 5: Solve for x
   x = 178,726,977.31/14,978.31
6. Step 6: Final answer
   x = 11,932.39