Finding the Fourth Proportional to 31,144.07, 42,977.22 and 16,994.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,144.07 : 42,977.22 = 16,994.18 : x
2. Step 2: Convert to fraction form
   31,144.07/42,977.22 = 16,994.18/x
3. Step 3: Cross multiply
   31,144.07x = 42,977.22 × 16,994.18
4. Step 4: Simplify right side
   31,144.07x = 730,362,656.29
5. Step 5: Solve for x
   x = 730,362,656.29/31,144.07
6. Step 6: Final answer
   x = 23,451.10