Finding the Fourth Proportional to 31,156.04, 42,995.12 and 17,008.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.04 : 42,995.12 = 17,008.88 : x
2. Step 2: Convert to fraction form
   31,156.04/42,995.12 = 17,008.88/x
3. Step 3: Cross multiply
   31,156.04x = 42,995.12 × 17,008.88
4. Step 4: Simplify right side
   31,156.04x = 731,298,536.65
5. Step 5: Solve for x
   x = 731,298,536.65/31,156.04
6. Step 6: Final answer
   x = 23,472.13