Finding the Fourth Proportional to 42,052.64, 63,077.58 and 17,085.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,052.64 : 63,077.58 = 17,085.30 : x
2. Step 2: Convert to fraction form
   42,052.64/63,077.58 = 17,085.30/x
3. Step 3: Cross multiply
   42,052.64x = 63,077.58 × 17,085.30
4. Step 4: Simplify right side
   42,052.64x = 1,077,699,377.57
5. Step 5: Solve for x
   x = 1,077,699,377.57/42,052.64
6. Step 6: Final answer
   x = 25,627.39