Finding the Fourth Proportional to 30,966.77, 42,732.71 and 17,538.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,966.77 : 42,732.71 = 17,538.12 : x
2. Step 2: Convert to fraction form
   30,966.77/42,732.71 = 17,538.12/x
3. Step 3: Cross multiply
   30,966.77x = 42,732.71 × 17,538.12
4. Step 4: Simplify right side
   30,966.77x = 749,451,308.21
5. Step 5: Solve for x
   x = 749,451,308.21/30,966.77
6. Step 6: Final answer
   x = 24,201.80