Finding the Fourth Proportional to 31,978.17, 44,128.26 and 17,828.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.17 : 44,128.26 = 17,828.28 : x
2. Step 2: Convert to fraction form
   31,978.17/44,128.26 = 17,828.28/x
3. Step 3: Cross multiply
   31,978.17x = 44,128.26 × 17,828.28
4. Step 4: Simplify right side
   31,978.17x = 786,730,975.19
5. Step 5: Solve for x
   x = 786,730,975.19/31,978.17
6. Step 6: Final answer
   x = 24,602.13