Finding the Fourth Proportional to 31,031.01, 42,823.35 and 16,884.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,031.01 : 42,823.35 = 16,884.09 : x
2. Step 2: Convert to fraction form
   31,031.01/42,823.35 = 16,884.09/x
3. Step 3: Cross multiply
   31,031.01x = 42,823.35 × 16,884.09
4. Step 4: Simplify right side
   31,031.01x = 723,033,295.50
5. Step 5: Solve for x
   x = 723,033,295.50/31,031.01
6. Step 6: Final answer
   x = 23,300.35