Finding the Fourth Proportional to 42,377.85, 63,574.07 and 17,431.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,377.85 : 63,574.07 = 17,431.47 : x
2. Step 2: Convert to fraction form
   42,377.85/63,574.07 = 17,431.47/x
3. Step 3: Cross multiply
   42,377.85x = 63,574.07 × 17,431.47
4. Step 4: Simplify right side
   42,377.85x = 1,108,189,406.83
5. Step 5: Solve for x
   x = 1,108,189,406.83/42,377.85
6. Step 6: Final answer
   x = 26,150.20