Finding the Fourth Proportional to 31,090.48, 42,900 and 17,475.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,090.48 : 42,900 = 17,475.82 : x
2. Step 2: Convert to fraction form
   31,090.48/42,900 = 17,475.82/x
3. Step 3: Cross multiply
   31,090.48x = 42,900 × 17,475.82
4. Step 4: Simplify right side
   31,090.48x = 749,712,678
5. Step 5: Solve for x
   x = 749,712,678/31,090.48
6. Step 6: Final answer
   x = 24,113.90