Finding the Fourth Proportional to 42,106.57, 63,105.01 and 17,117.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,106.57 : 63,105.01 = 17,117.43 : x
2. Step 2: Convert to fraction form
   42,106.57/63,105.01 = 17,117.43/x
3. Step 3: Cross multiply
   42,106.57x = 63,105.01 × 17,117.43
4. Step 4: Simplify right side
   42,106.57x = 1,080,195,591.32
5. Step 5: Solve for x
   x = 1,080,195,591.32/42,106.57
6. Step 6: Final answer
   x = 25,653.85