Finding the Fourth Proportional to 42,476.91, 63,739.94 and 17,512.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,476.91 : 63,739.94 = 17,512.31 : x
2. Step 2: Convert to fraction form
   42,476.91/63,739.94 = 17,512.31/x
3. Step 3: Cross multiply
   42,476.91x = 63,739.94 × 17,512.31
4. Step 4: Simplify right side
   42,476.91x = 1,116,233,182.40
5. Step 5: Solve for x
   x = 1,116,233,182.40/42,476.91
6. Step 6: Final answer
   x = 26,278.59