Finding the Fourth Proportional to 31,076.02, 42,885.03 and 16,928.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076.02 : 42,885.03 = 16,928.74 : x
2. Step 2: Convert to fraction form
   31,076.02/42,885.03 = 16,928.74/x
3. Step 3: Cross multiply
   31,076.02x = 42,885.03 × 16,928.74
4. Step 4: Simplify right side
   31,076.02x = 725,989,522.76
5. Step 5: Solve for x
   x = 725,989,522.76/31,076.02
6. Step 6: Final answer
   x = 23,361.73