Finding the Fourth Proportional to 31,141.82, 42,977.40 and 16,994.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,141.82 : 42,977.40 = 16,994.76 : x
2. Step 2: Convert to fraction form
   31,141.82/42,977.40 = 16,994.76/x
3. Step 3: Cross multiply
   31,141.82x = 42,977.40 × 16,994.76
4. Step 4: Simplify right side
   31,141.82x = 730,390,598.42
5. Step 5: Solve for x
   x = 730,390,598.42/31,141.82
6. Step 6: Final answer
   x = 23,453.69