Finding the Fourth Proportional to 31,328.09, 43,228.77 and 17,900.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,328.09 : 43,228.77 = 17,900.22 : x
2. Step 2: Convert to fraction form
   31,328.09/43,228.77 = 17,900.22/x
3. Step 3: Cross multiply
   31,328.09x = 43,228.77 × 17,900.22
4. Step 4: Simplify right side
   31,328.09x = 773,804,364.78
5. Step 5: Solve for x
   x = 773,804,364.78/31,328.09
6. Step 6: Final answer
   x = 24,700.02