Finding the Fourth Proportional to 31,158.27, 42,998.24 and 17,011.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,158.27 : 42,998.24 = 17,011.01 : x
2. Step 2: Convert to fraction form
   31,158.27/42,998.24 = 17,011.01/x
3. Step 3: Cross multiply
   31,158.27x = 42,998.24 × 17,011.01
4. Step 4: Simplify right side
   31,158.27x = 731,443,640.65
5. Step 5: Solve for x
   x = 731,443,640.65/31,158.27
6. Step 6: Final answer
   x = 23,475.10