Finding the Fourth Proportional to 42,069.42, 63,128.25 and 17,104.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,069.42 : 63,128.25 = 17,104.86 : x
2. Step 2: Convert to fraction form
   42,069.42/63,128.25 = 17,104.86/x
3. Step 3: Cross multiply
   42,069.42x = 63,128.25 × 17,104.86
4. Step 4: Simplify right side
   42,069.42x = 1,079,799,878.30
5. Step 5: Solve for x
   x = 1,079,799,878.30/42,069.42
6. Step 6: Final answer
   x = 25,667.10