Finding the Fourth Proportional to 31,978.80, 44,128.80 and 17,830.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.80 : 44,128.80 = 17,830.80 : x
2. Step 2: Convert to fraction form
   31,978.80/44,128.80 = 17,830.80/x
3. Step 3: Cross multiply
   31,978.80x = 44,128.80 × 17,830.80
4. Step 4: Simplify right side
   31,978.80x = 786,851,807.04
5. Step 5: Solve for x
   x = 786,851,807.04/31,978.80
6. Step 6: Final answer
   x = 24,605.42