Finding the Fourth Proportional to 42,387.23, 63,601.52 and 17,434.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,387.23 : 63,601.52 = 17,434.78 : x
2. Step 2: Convert to fraction form
   42,387.23/63,601.52 = 17,434.78/x
3. Step 3: Cross multiply
   42,387.23x = 63,601.52 × 17,434.78
4. Step 4: Simplify right side
   42,387.23x = 1,108,878,262.69
5. Step 5: Solve for x
   x = 1,108,878,262.69/42,387.23
6. Step 6: Final answer
   x = 26,160.67