Finding the Fourth Proportional to 30,815.82, 42,525.84 and 17,389.92

Step by Step Solution

1. Step 1: Write the proportion equation
   30,815.82 : 42,525.84 = 17,389.92 : x
2. Step 2: Convert to fraction form
   30,815.82/42,525.84 = 17,389.92/x
3. Step 3: Cross multiply
   30,815.82x = 42,525.84 × 17,389.92
4. Step 4: Simplify right side
   30,815.82x = 739,520,955.53
5. Step 5: Solve for x
   x = 739,520,955.53/30,815.82
6. Step 6: Final answer
   x = 23,998.09