Finding the Fourth Proportional to 42,146.31, 63,201.90 and 17,169.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.31 : 63,201.90 = 17,169.42 : x
2. Step 2: Convert to fraction form
   42,146.31/63,201.90 = 17,169.42/x
3. Step 3: Cross multiply
   42,146.31x = 63,201.90 × 17,169.42
4. Step 4: Simplify right side
   42,146.31x = 1,085,139,965.90
5. Step 5: Solve for x
   x = 1,085,139,965.90/42,146.31
6. Step 6: Final answer
   x = 25,746.97