Finding the Fourth Proportional to 42,086.58, 63,166.65 and 17,140.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086.58 : 63,166.65 = 17,140.26 : x
2. Step 2: Convert to fraction form
   42,086.58/63,166.65 = 17,140.26/x
3. Step 3: Cross multiply
   42,086.58x = 63,166.65 × 17,140.26
4. Step 4: Simplify right side
   42,086.58x = 1,082,692,804.33
5. Step 5: Solve for x
   x = 1,082,692,804.33/42,086.58
6. Step 6: Final answer
   x = 25,725.37