Finding the Fourth Proportional to 42,317.63, 63,421.46 and 17,329.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,317.63 : 63,421.46 = 17,329.33 : x
2. Step 2: Convert to fraction form
   42,317.63/63,421.46 = 17,329.33/x
3. Step 3: Cross multiply
   42,317.63x = 63,421.46 × 17,329.33
4. Step 4: Simplify right side
   42,317.63x = 1,099,051,409.42
5. Step 5: Solve for x
   x = 1,099,051,409.42/42,317.63
6. Step 6: Final answer
   x = 25,971.48