Finding the Fourth Proportional to 31,055.04, 42,855.96 and 16,907.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055.04 : 42,855.96 = 16,907.88 : x
2. Step 2: Convert to fraction form
   31,055.04/42,855.96 = 16,907.88/x
3. Step 3: Cross multiply
   31,055.04x = 42,855.96 × 16,907.88
4. Step 4: Simplify right side
   31,055.04x = 724,603,428.96
5. Step 5: Solve for x
   x = 724,603,428.96/31,055.04
6. Step 6: Final answer
   x = 23,332.88