Finding the Fourth Proportional to 31,820.48, 43,911.60 and 17,672.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,820.48 : 43,911.60 = 17,672.48 : x
2. Step 2: Convert to fraction form
   31,820.48/43,911.60 = 17,672.48/x
3. Step 3: Cross multiply
   31,820.48x = 43,911.60 × 17,672.48
4. Step 4: Simplify right side
   31,820.48x = 776,026,872.77
5. Step 5: Solve for x
   x = 776,026,872.77/31,820.48
6. Step 6: Final answer
   x = 24,387.65