Finding the Fourth Proportional to 30,900.13, 42,639.56 and 17,469.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,900.13 : 42,639.56 = 17,469.52 : x
2. Step 2: Convert to fraction form
   30,900.13/42,639.56 = 17,469.52/x
3. Step 3: Cross multiply
   30,900.13x = 42,639.56 × 17,469.52
4. Step 4: Simplify right side
   30,900.13x = 744,892,558.86
5. Step 5: Solve for x
   x = 744,892,558.86/30,900.13
6. Step 6: Final answer
   x = 24,106.45