Finding the Fourth Proportional to 42,201.86, 63,279.43 and 17,259.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,201.86 : 63,279.43 = 17,259.42 : x
2. Step 2: Convert to fraction form
   42,201.86/63,279.43 = 17,259.42/x
3. Step 3: Cross multiply
   42,201.86x = 63,279.43 × 17,259.42
4. Step 4: Simplify right side
   42,201.86x = 1,092,166,097.93
5. Step 5: Solve for x
   x = 1,092,166,097.93/42,201.86
6. Step 6: Final answer
   x = 25,879.58