Finding the Fourth Proportional to 30,538.02, 42,145.06 and 17,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,538.02 : 42,145.06 = 17,109.10 : x
2. Step 2: Convert to fraction form
   30,538.02/42,145.06 = 17,109.10/x
3. Step 3: Cross multiply
   30,538.02x = 42,145.06 × 17,109.10
4. Step 4: Simplify right side
   30,538.02x = 721,064,046.05
5. Step 5: Solve for x
   x = 721,064,046.05/30,538.02
6. Step 6: Final answer
   x = 23,612.01