Finding the Fourth Proportional to 42,107.57, 63,106.51 and 17,118.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,107.57 : 63,106.51 = 17,118.43 : x
2. Step 2: Convert to fraction form
   42,107.57/63,106.51 = 17,118.43/x
3. Step 3: Cross multiply
   42,107.57x = 63,106.51 × 17,118.43
4. Step 4: Simplify right side
   42,107.57x = 1,080,284,373.98
5. Step 5: Solve for x
   x = 1,080,284,373.98/42,107.57
6. Step 6: Final answer
   x = 25,655.35