Finding the Fourth Proportional to 24,978.21, 34,429.83 and 16,909.32

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.21 : 34,429.83 = 16,909.32 : x
2. Step 2: Convert to fraction form
   24,978.21/34,429.83 = 16,909.32/x
3. Step 3: Cross multiply
   24,978.21x = 34,429.83 × 16,909.32
4. Step 4: Simplify right side
   24,978.21x = 582,185,013.02
5. Step 5: Solve for x
   x = 582,185,013.02/24,978.21
6. Step 6: Final answer
   x = 23,307.72