Finding the Fourth Proportional to 31,075.18, 42,883.53 and 16,928.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,075.18 : 42,883.53 = 16,928.02 : x
2. Step 2: Convert to fraction form
   31,075.18/42,883.53 = 16,928.02/x
3. Step 3: Cross multiply
   31,075.18x = 42,883.53 × 16,928.02
4. Step 4: Simplify right side
   31,075.18x = 725,933,243.63
5. Step 5: Solve for x
   x = 725,933,243.63/31,075.18
6. Step 6: Final answer
   x = 23,360.55