Finding the Fourth Proportional to 42,072.75, 63,060.71 and 17,085.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,072.75 : 63,060.71 = 17,085.38 : x
2. Step 2: Convert to fraction form
   42,072.75/63,060.71 = 17,085.38/x
3. Step 3: Cross multiply
   42,072.75x = 63,060.71 × 17,085.38
4. Step 4: Simplify right side
   42,072.75x = 1,077,415,792.69
5. Step 5: Solve for x
   x = 1,077,415,792.69/42,072.75
6. Step 6: Final answer
   x = 25,608.40