Finding the Fourth Proportional to 31,238.07, 43,109.61 and 17,090.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,238.07 : 43,109.61 = 17,090.92 : x
2. Step 2: Convert to fraction form
   31,238.07/43,109.61 = 17,090.92/x
3. Step 3: Cross multiply
   31,238.07x = 43,109.61 × 17,090.92
4. Step 4: Simplify right side
   31,238.07x = 736,782,744.28
5. Step 5: Solve for x
   x = 736,782,744.28/31,238.07
6. Step 6: Final answer
   x = 23,586.05