Finding the Fourth Proportional to 31,156.02, 42,994.10 and 17,008.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.02 : 42,994.10 = 17,008.96 : x
2. Step 2: Convert to fraction form
   31,156.02/42,994.10 = 17,008.96/x
3. Step 3: Cross multiply
   31,156.02x = 42,994.10 × 17,008.96
4. Step 4: Simplify right side
   31,156.02x = 731,284,927.14
5. Step 5: Solve for x
   x = 731,284,927.14/31,156.02
6. Step 6: Final answer
   x = 23,471.71