Finding the Fourth Proportional to 30,786.42, 42,484.77 and 17,357.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,786.42 : 42,484.77 = 17,357.70 : x
2. Step 2: Convert to fraction form
   30,786.42/42,484.77 = 17,357.70/x
3. Step 3: Cross multiply
   30,786.42x = 42,484.77 × 17,357.70
4. Step 4: Simplify right side
   30,786.42x = 737,437,892.23
5. Step 5: Solve for x
   x = 737,437,892.23/30,786.42
6. Step 6: Final answer
   x = 23,953.35