Finding the Fourth Proportional to 31,028.64, 42,820.59 and 16,882.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,028.64 : 42,820.59 = 16,882.02 : x
2. Step 2: Convert to fraction form
   31,028.64/42,820.59 = 16,882.02/x
3. Step 3: Cross multiply
   31,028.64x = 42,820.59 × 16,882.02
4. Step 4: Simplify right side
   31,028.64x = 722,898,056.79
5. Step 5: Solve for x
   x = 722,898,056.79/31,028.64
6. Step 6: Final answer
   x = 23,297.77