Finding the Fourth Proportional to 30,917.10, 42,665.62 and 17,488.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,917.10 : 42,665.62 = 17,488.08 : x
2. Step 2: Convert to fraction form
   30,917.10/42,665.62 = 17,488.08/x
3. Step 3: Cross multiply
   30,917.10x = 42,665.62 × 17,488.08
4. Step 4: Simplify right side
   30,917.10x = 746,139,775.81
5. Step 5: Solve for x
   x = 746,139,775.81/30,917.10
6. Step 6: Final answer
   x = 24,133.56