Finding the Fourth Proportional to 30,519.14, 42,111.50 and 17,090.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,519.14 : 42,111.50 = 17,090.96 : x
2. Step 2: Convert to fraction form
   30,519.14/42,111.50 = 17,090.96/x
3. Step 3: Cross multiply
   30,519.14x = 42,111.50 × 17,090.96
4. Step 4: Simplify right side
   30,519.14x = 719,725,666.03
5. Step 5: Solve for x
   x = 719,725,666.03/30,519.14
6. Step 6: Final answer
   x = 23,582.77